NASA

4 Min Read Career Spotlight: Scientist (Ages 14-18) What does a scientist do?

Science is about exploring answers to questions. A scientist uses research and evidence to form hypotheses, test variables, and then share their findings.

NASA scientists conduct groundbreaking research to answer some of humanity’s most profound questions. Most scientists start as project scientists in their early careers. They spend a lot of time publishing their peer-reviewed literature and presenting scientific research. Senior-level scientists provide leadership in the NASA community, actively publish research group work, and take on management roles.

What are some of the different types of scientists that work at NASA?

Many types of scientists work at NASA to support its wide variety of missions. The agency’s scientists research the foods we send to space, the habitability of other planets, the weather in space, and so much more. Here are a few examples of types of scientists at NASA.

Planetary scientist: Discovers and studies the planetary objects in our solar system. These efforts shed light on the history of the solar system and the distribution of life within it.

Astrobiologist: Studies the origins of life, how life evolves, and where it might be found in the universe.

Astrophysicist: Studies the physical and chemical structures of stars, planets, and other natural objects found in space.

Biological/physical scientist: Studies how biological and physical processes work in challenging environments like space. This information helps NASA design longer human space missions and also benefits life on Earth.

Earth scientist: Uses observations and data from satellites and other sources to study Earth’s atmosphere, oceans, land cover, and land use.

Heliophysicist: Studies the Sun and its behaviors, such as magnetic fields, solar wind, and space weather. This knowledge helps us better understand and predict the Sun’s effects on Earth and in space.

How can I become a scientist?

Focus on building your scientific knowledge and skills. You can do this by taking challenging academic courses, participating in science fairs, and joining extracurricular activities that have a scientific focus. This is also a good time to research what types of sciences you’re most interested in, possible careers in those fields, and academic degrees required for those jobs.

Scientists typically need at least a four-year degree. Most pursue a master’s degree or even a doctorate (Ph.D.) to become experts in their field.

How can I start preparing today to become a scientist?

Interested in applying some science skills right away? NASA provides a variety of hands-on activities for a range of skill levels. The space agency also offers student challenges, competitions, and activities that provide authentic experience in a variety of science fields. For up-to-date opportunities, visit:

• NASA STEM Opportunities and Activities for Students
• NASA Science Learning Opportunities

NASA also offers paid internships for U.S. citizens aged 16 and up. Interns work on real projects with the guidance of a NASA mentor. Internship sessions are held each year in spring, summer, and fall; visit NASA’s Internships website to learn about important deadlines and current opportunities.

Advice from NASA scientists

“Take advantage of opportunities in different fields like attending summer classes, volunteering on the weekends, visiting museums, attending community lectures, and reading introductory books at the library. These are a few ways to expand your scope of possibility within the sciences, while simultaneously narrowing your focus in a field.” – Angela Garcia, exploration geologist

“The key to being a scientist is to love asking questions. If you are fascinated about how and why things work — you are already a scientist.”

Nicola Fox

NASA Associate Administrator, Science Mission Directorate

“One general skill that is often overlooked is the ability to write well and clearly. There’s a misconception that being a scientist means using big words and writing in ways that no one understands, when it’s actually the opposite. The ability to communicate your thoughts and ideas so that a child can understand is not easy, but it’s essential for good scientific writing.” – Matt Mickens, NASA horticulturist

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5 Min Read 20-Year Hubble Study of Uranus Yields New Atmospheric Insights

The image columns show the change of Uranus for the four years that STIS observed Uranus across a 20-year period. Over that span of time, the researchers watched the seasons of Uranus as the south polar region darkened going into winter shadow while the north polar region brightened as northern summer approaches.

Credits:
NASA, ESA, Erich Karkoschka (LPL)

The ice-giant planet Uranus, which travels around the Sun tipped on its side, is a weird and mysterious world. Now, in an unprecedented study spanning two decades, researchers using NASA’s Hubble Space Telescope have uncovered new insights into the planet’s atmospheric composition and dynamics. This was possible only because of Hubble’s sharp resolution, spectral capabilities, and longevity. 

The team’s results will help astronomers to better understand how the atmosphere of Uranus works and responds to changing sunlight. These long-term observations provide valuable data for understanding the atmospheric dynamics of this distant ice giant, which can serve as a proxy for studying exoplanets of similar size and composition.

When Voyager 2 flew past Uranus in 1986, it provided a close-up snapshot of the sideways planet. What it saw resembled a bland, blue-green billiard ball. By comparison, Hubble chronicled a 20-year story of seasonal changes from 2002 to 2022. Over that period, a team led by Erich Karkoschka of the University of Arizona, and Larry Sromovsky and Pat Fry from the University of Wisconsin used the same Hubble instrument, STIS (the Space Telescope Imaging Spectrograph), to paint an accurate picture of the atmospheric structure of Uranus. 

Uranus’ atmosphere is mostly hydrogen and helium, with a small amount of methane and traces of water and ammonia. The methane gives Uranus its cyan color by absorbing the red wavelengths of sunlight.

The Hubble team observed Uranus four times in the 20-year period: in 2002, 2012, 2015, and 2022. They found that, unlike conditions on the gas giants Saturn and Jupiter, methane is not uniformly distributed across Uranus. Instead, it is strongly depleted near the poles. This depletion remained relatively constant over the two decades. However, the aerosol and haze structure changed dramatically, brightening significantly in the northern polar region as the planet approaches its northern summer solstice in 2030.

The image columns show the change of Uranus for the four years that STIS observed Uranus across a 20-year period. Over that span of time, the researchers watched the seasons of Uranus as the south polar region darkened going into winter shadow while the north polar region brightened as northern summer approaches. NASA, ESA, Erich Karkoschka (LPL)

Uranus takes a little over 84 Earth years to complete a single orbit of the Sun. So, over two decades, the Hubble team has only seen mostly northern spring as the Sun moves from shining directly over Uranus’ equator toward shining almost directly over its north pole in 2030. Hubble observations suggest complex atmospheric circulation patterns on Uranus during this period. The data that are most sensitive to the methane distribution indicate a downwelling in the polar regions and upwelling in other regions. 

The team analyzed their results in several ways. The image columns show the change of Uranus for the four years that STIS observed Uranus across a 20-year period. Over that span of time, the researchers watched the seasons of Uranus as the south polar region (left) darkened going into winter shadow while the north polar region (right) brightened as it began to come into a more direct view as northern summer approaches.

The top row, in visible light, shows how the color of Uranus appears to the human eye as seen through even an amateur telescope. 

In the second row, the false-color image of the planet is assembled from visible and near-infrared light observations. The color and brightness correspond to the amounts of methane and aerosols. Both of these quantities could not be distinguished before Hubble’s STIS was first aimed at Uranus in 2002. Generally, green areas indicate less methane than blue areas, and red areas show no methane. The red areas are at the limb, where the stratosphere of Uranus is almost completely devoid of methane. 

The two bottom rows show the latitude structure of aerosols and methane inferred from 1,000 different wavelengths (colors) from visible to near infrared. In the third row, bright areas indicate cloudier conditions, while the dark areas represent clearer conditions. In the fourth row, bright areas indicate depleted methane, while dark areas show the full amount of methane. 

At middle and low latitudes, aerosols and methane depletion have their own latitudinal structure that mostly did not change much over the two decades of observation.  However, in the polar regions, aerosols and methane depletion behave very differently. 

In the third row, the aerosols near the north pole display a dramatic increase, showing up as very dark during early northern spring, turning very bright in recent years. Aerosols also seem to disappear at the left limb as the solar radiation disappeared. This is evidence that solar radiation changes the aerosol haze in the atmosphere of Uranus. On the other hand, methane depletion seems to stay quite high in both polar regions throughout the observing period. 

Astronomers will continue to observe Uranus as the planet approaches northern summer.

The Hubble Space Telescope has been operating for over three decades and continues to make ground-breaking discoveries that shape our fundamental understanding of the universe. Hubble is a project of international cooperation between NASA and ESA (European Space Agency). NASA’s Goddard Space Flight Center in Greenbelt, Maryland, manages the telescope and mission operations. Lockheed Martin Space, based in Denver, also supports mission operations at Goddard. The Space Telescope Science Institute in Baltimore, which is operated by the Association of Universities for Research in Astronomy, conducts Hubble science operations for NASA.

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20 Years of Uranus Observations

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Last Updated

Mar 31, 2025

Editor Andrea Gianopoulos Location NASA Goddard Space Flight Center

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Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov

Ann Jenkins
Space Telescope Science Institute, Baltimore, Maryland

Ray Villard
Space Telescope Science Institute, Baltimore, Maryland

Related Terms

• Hubble Space Telescope
• Astrophysics Division
• Goddard Space Flight Center
• Planetary Environments & Atmospheres
• Planetary Science
• Planets
• The Solar System
• Uranus

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5 Min Read 20-Year Hubble Study of Uranus Yields New Atmospheric Insights

The image columns show the change of Uranus for the four years that STIS observed Uranus across a 20-year period. Over that span of time, the researchers watched the seasons of Uranus as the south polar region darkened going into winter shadow while the north polar region brightened as northern summer approaches.

Credits:
NASA, ESA, Erich Karkoschka (LPL)

The ice-giant planet Uranus, which travels around the Sun tipped on its side, is a weird and mysterious world. Now, in an unprecedented study spanning two decades, researchers using NASA’s Hubble Space Telescope have uncovered new insights into the planet’s atmospheric composition and dynamics. This was possible only because of Hubble’s sharp resolution, spectral capabilities, and longevity. 

The team’s results will help astronomers to better understand how the atmosphere of Uranus works and responds to changing sunlight. These long-term observations provide valuable data for understanding the atmospheric dynamics of this distant ice giant, which can serve as a proxy for studying exoplanets of similar size and composition.

When Voyager 2 flew past Uranus in 1986, it provided a close-up snapshot of the sideways planet. What it saw resembled a bland, blue-green billiard ball. By comparison, Hubble chronicled a 20-year story of seasonal changes from 2002 to 2022. Over that period, a team led by Erich Karkoschka of the University of Arizona, and Larry Sromovsky and Pat Fry from the University of Wisconsin used the same Hubble instrument, STIS (the Space Telescope Imaging Spectrograph), to paint an accurate picture of the atmospheric structure of Uranus. 

Uranus’ atmosphere is mostly hydrogen and helium, with a small amount of methane and traces of water and ammonia. The methane gives Uranus its cyan color by absorbing the red wavelengths of sunlight.

The Hubble team observed Uranus four times in the 20-year period: in 2002, 2012, 2015, and 2022. They found that, unlike conditions on the gas giants Saturn and Jupiter, methane is not uniformly distributed across Uranus. Instead, it is strongly depleted near the poles. This depletion remained relatively constant over the two decades. However, the aerosol and haze structure changed dramatically, brightening significantly in the northern polar region as the planet approaches its northern summer solstice in 2030.

The image columns show the change of Uranus for the four years that STIS observed Uranus across a 20-year period. Over that span of time, the researchers watched the seasons of Uranus as the south polar region darkened going into winter shadow while the north polar region brightened as northern summer approaches. NASA, ESA, Erich Karkoschka (LPL)

Uranus takes a little over 84 Earth years to complete a single orbit of the Sun. So, over two decades, the Hubble team has only seen mostly northern spring as the Sun moves from shining directly over Uranus’ equator toward shining almost directly over its north pole in 2030. Hubble observations suggest complex atmospheric circulation patterns on Uranus during this period. The data that are most sensitive to the methane distribution indicate a downwelling in the polar regions and upwelling in other regions. 

The team analyzed their results in several ways. The image columns show the change of Uranus for the four years that STIS observed Uranus across a 20-year period. Over that span of time, the researchers watched the seasons of Uranus as the south polar region (left) darkened going into winter shadow while the north polar region (right) brightened as it began to come into a more direct view as northern summer approaches.

The top row, in visible light, shows how the color of Uranus appears to the human eye as seen through even an amateur telescope. 

In the second row, the false-color image of the planet is assembled from visible and near-infrared light observations. The color and brightness correspond to the amounts of methane and aerosols. Both of these quantities could not be distinguished before Hubble’s STIS was first aimed at Uranus in 2002. Generally, green areas indicate less methane than blue areas, and red areas show no methane. The red areas are at the limb, where the stratosphere of Uranus is almost completely devoid of methane. 

The two bottom rows show the latitude structure of aerosols and methane inferred from 1,000 different wavelengths (colors) from visible to near infrared. In the third row, bright areas indicate cloudier conditions, while the dark areas represent clearer conditions. In the fourth row, bright areas indicate depleted methane, while dark areas show the full amount of methane. 

At middle and low latitudes, aerosols and methane depletion have their own latitudinal structure that mostly did not change much over the two decades of observation.  However, in the polar regions, aerosols and methane depletion behave very differently. 

In the third row, the aerosols near the north pole display a dramatic increase, showing up as very dark during early northern spring, turning very bright in recent years. Aerosols also seem to disappear at the left limb as the solar radiation disappeared. This is evidence that solar radiation changes the aerosol haze in the atmosphere of Uranus. On the other hand, methane depletion seems to stay quite high in both polar regions throughout the observing period. 

Astronomers will continue to observe Uranus as the planet approaches northern summer.

The Hubble Space Telescope has been operating for over three decades and continues to make ground-breaking discoveries that shape our fundamental understanding of the universe. Hubble is a project of international cooperation between NASA and ESA (European Space Agency). NASA’s Goddard Space Flight Center in Greenbelt, Maryland, manages the telescope and mission operations. Lockheed Martin Space, based in Denver, also supports mission operations at Goddard. The Space Telescope Science Institute in Baltimore, which is operated by the Association of Universities for Research in Astronomy, conducts Hubble science operations for NASA.

Facebook logo @NASAHubble

@NASAHubble

Instagram logo @NASAHubble

Related Images & Videos

20 Years of Uranus Observations

Share

• 
  
  
• 
  
  
• 
  
  
• 
  
  

Details

Last Updated

Mar 31, 2025

Editor Andrea Gianopoulos Location NASA Goddard Space Flight Center

Contact

Media

Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov

Ann Jenkins
Space Telescope Science Institute, Baltimore, Maryland

Ray Villard
Space Telescope Science Institute, Baltimore, Maryland

Related Terms

• Hubble Space Telescope
• Astrophysics Division
• Goddard Space Flight Center
• Planetary Environments & Atmospheres
• Planetary Science
• Planets
• The Solar System
• Uranus

3 min read

Preparations for Next Moonwalk Simulations Underway (and Underwater) This team from University High School in Irvine, California, won the 2025 regional Oceans Science Bowl, hosted by NASA’s Jet Propulsion Laboratory. From left: Nethra Iyer, Joanne Chen, Matthew Feng, Avery Hexun, Angelina Yan, and coach David Knight.NASA/JPL-Caltech

The annual regional event puts students’ knowledge of ocean-related science to the test in a fast-paced academic competition.

A team of students from University High School in Irvine earned first place at a fast-paced regional academic competition focused on ocean science disciplines and hosted by NASA’S Jet Propulsion Laboratory in Southern California.

Eight teams from Los Angeles and Orange counties competed at the March 29 event, dubbed the Los Angeles Surf Bowl. It was the last of about 20 regional competitions held across the U.S. this year in the lead-up to the virtual National Ocean Sciences Bowl finals event in mid-May.

Santa Monica High School earned second place; Francisco Bravo Medical Magnet High School in Los Angeles came in third. With its victory, University repeated its winning performance from last year. The school also won the JPL-hosted regional Science Bowl earlier this month.

Teams from all eight schools that participated in the JPL-hosted 2025 regional Ocean Sciences Bowl pose alongside volunteers and coaches.NASA/JPL-Caltech

For the Ocean Sciences Bowl, teams are composed of four to five students and a coach. To prepare for the event, team members spend months answering multiple-choice questions with a “Jeopardy!”-style buzzer in just five seconds. Questions come in several categories, including biology, chemistry, geology, and physics along with related geography, technology, history, policy, and current events topics.

A question in the chemistry category might be “What chemical is the principal source of energy at many of Earth’s hydrothermal vent systems?” (It’s hydrogen sulfide.) Other questions can be considerably more challenging.

When a team member buzzes in and gives the correct answer to a multiple-choice question, the team earns a bonus question, which allows teammates to consult with one another to come up with an answer. More complicated “team challenge questions” prompt students to work together for a longer period. The theme of this year’s competition is “Sounding the Depths: Understanding Ocean Acoustics.”

University High junior Matthew Feng, a return competitor, said the team’s success felt like a payoff for hours of studying together, including on weekends. He keeps coming back to the competition partly for the sense of community and also for the personal challenge, he said. “It’s nice to compete and meet people, see people who were here last year,” Matthew added. “Pushing yourself mentally — the first year I was shaking so hard because I wasn’t used to that much adrenaline.”

Since 2000, JPL’s Public Services Office has coordinated the Los Angeles regional contest with the help of volunteers from laboratory staff and former Ocean Sciences Bowl participants in the local community. JPL is managed for NASA by Caltech.

The National Ocean Sciences Bowl is a program of the Center for Ocean Leadership at the University Corporation for Atmospheric Research, a nonprofit consortium of colleges and universities focused in part on Earth science-related education.

News Media Contact

Melissa Pamer
Jet Propulsion Laboratory, Pasadena, Calif.
626-314-4928
melissa.pamer@jpl.nasa.gov

2025-044

Share

Details Last Updated Mar 31, 2025 Related Terms

• Jet Propulsion Laboratory
• STEM Engagement at NASA

Explore More 6 min read NASA’s Curiosity Rover Detects Largest Organic Molecules Found on Mars

Researchers analyzing pulverized rock onboard NASA’s Curiosity rover have found the largest organic compounds on…

Article 1 week ago 5 min read NASA Takes to the Air to Study Wildflowers Article 1 week ago 6 min read Next-Generation Water Satellite Maps Seafloor From Space Article 2 weeks ago Keep Exploring Discover Related Topics

Missions

Humans in Space

Climate Change

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3 min read

Preparations for Next Moonwalk Simulations Underway (and Underwater) This team from University High School in Irvine, California, won the 2025 regional Oceans Science Bowl, hosted by NASA’s Jet Propulsion Laboratory. From left: Nethra Iyer, Joanne Chen, Matthew Feng, Avery Hexun, Angelina Yan, and coach David Knight.NASA/JPL-Caltech

The annual regional event puts students’ knowledge of ocean-related science to the test in a fast-paced academic competition.

A team of students from University High School in Irvine earned first place at a fast-paced regional academic competition focused on ocean science disciplines and hosted by NASA’S Jet Propulsion Laboratory in Southern California.

Eight teams from Los Angeles and Orange counties competed at the March 29 event, dubbed the Los Angeles Surf Bowl. It was the last of about 20 regional competitions held across the U.S. this year in the lead-up to the virtual National Ocean Sciences Bowl finals event in mid-May.

Santa Monica High School earned second place; Francisco Bravo Medical Magnet High School in Los Angeles came in third. With its victory, University repeated its winning performance from last year. The school also won the JPL-hosted regional Science Bowl earlier this month.

Teams from all eight schools that participated in the JPL-hosted 2025 regional Ocean Sciences Bowl pose alongside volunteers and coaches.NASA/JPL-Caltech

For the Ocean Sciences Bowl, teams are composed of four to five students and a coach. To prepare for the event, team members spend months answering multiple-choice questions with a “Jeopardy!”-style buzzer in just five seconds. Questions come in several categories, including biology, chemistry, geology, and physics along with related geography, technology, history, policy, and current events topics.

A question in the chemistry category might be “What chemical is the principal source of energy at many of Earth’s hydrothermal vent systems?” (It’s hydrogen sulfide.) Other questions can be considerably more challenging.

When a team member buzzes in and gives the correct answer to a multiple-choice question, the team earns a bonus question, which allows teammates to consult with one another to come up with an answer. More complicated “team challenge questions” prompt students to work together for a longer period. The theme of this year’s competition is “Sounding the Depths: Understanding Ocean Acoustics.”

University High junior Matthew Feng, a return competitor, said the team’s success felt like a payoff for hours of studying together, including on weekends. He keeps coming back to the competition partly for the sense of community and also for the personal challenge, he said. “It’s nice to compete and meet people, see people who were here last year,” Matthew added. “Pushing yourself mentally — the first year I was shaking so hard because I wasn’t used to that much adrenaline.”

Since 2000, JPL’s Public Services Office has coordinated the Los Angeles regional contest with the help of volunteers from laboratory staff and former Ocean Sciences Bowl participants in the local community. JPL is managed for NASA by Caltech.

The National Ocean Sciences Bowl is a program of the Center for Ocean Leadership at the University Corporation for Atmospheric Research, a nonprofit consortium of colleges and universities focused in part on Earth science-related education.

News Media Contact

Melissa Pamer
Jet Propulsion Laboratory, Pasadena, Calif.
626-314-4928
melissa.pamer@jpl.nasa.gov

2025-044

Share

Details Last Updated Mar 31, 2025 Related Terms

• Jet Propulsion Laboratory
• STEM Engagement at NASA

Explore More 6 min read NASA’s Curiosity Rover Detects Largest Organic Molecules Found on Mars

Researchers analyzing pulverized rock onboard NASA’s Curiosity rover have found the largest organic compounds on…

Article 1 week ago 5 min read NASA Takes to the Air to Study Wildflowers Article 1 week ago 6 min read Next-Generation Water Satellite Maps Seafloor From Space Article 2 weeks ago Keep Exploring Discover Related Topics

Missions

Humans in Space

Climate Change

Solar System

3 min read

Preparations for Next Moonwalk Simulations Underway (and Underwater) El avión de investigación supersónico silencioso X-59 de la NASA se encuentra en una rampa de Lockheed Martin Skunk Works en Palmdale, California, durante el atardecer. Esta aeronave única en su tipo es propulsada por un motor General Electric F414, una variante de los motores utilizados en los aviones F/A-18. El motor está montado sobre el fuselaje para reducir la cantidad de ondas de choque que llegan al suelo. El X-59 es la pieza central de la misión Quesst de la NASA, que busca demostrar el vuelo supersónico silencioso y permitir futuros viajes comerciales sobre tierra – más rápidos que la velocidad del sonido.Lockheed Martin Corporation/Garry Tice El avión de investigación supersónico silencioso X-59 de la NASA se encuentra en una rampa de Lockheed Martin Skunk Works en Palmdale, California, durante el atardecer. Esta aeronave única en su tipo es propulsada por un motor General Electric F414, una variante de los motores utilizados en los aviones F/A-18. El motor está montado sobre el fuselaje para reducir la cantidad de ondas de choque que llegan al suelo. El X-59 es la pieza central de la misión Quesst de la NASA, que busca demostrar el vuelo supersónico silencioso y permitir futuros viajes comerciales sobre tierra – más rápidos que la velocidad del sonido.Lockheed Martin Corporation/Garry Tice

Read this story in English here.

El equipo detrás del X-59 de la NASA completó en marzo otra prueba crítica en tierra, garantizando que el silencioso avión supersónico será capaz de mantener una velocidad específica durante su funcionamiento. Esta prueba, conocida como mantenimiento automático de velocidad del motor, es el más reciente marcador de progreso a medida que el X-59 se acerca a su primer vuelo este año. 

“El mantenimiento automático de la velocidad del motor es básicamente la versión de control de crucero de la aeronave,” explicó Paul Dees, jefe adjunto de propulsión de la NASA del X-59 en el Centro de Investigación de Vuelo Armstrong de la agencia en Edwards, California. “El piloto activa el control de velocidad a su velocidad actual y luego puede aumentarla o ajustarla gradualmente según sea necesario.” 

El equipo del X-59 ya había realizado una prueba similar en el motor, pero sólo como un sistema aislado. La prueba de marzo verificó que la retención de velocidad funciona correctamente tras su integración en la aviónica de la aeronave. 

“Necesitábamos verificar que el mantenimiento automático de velocidad funcionara no sólo dentro del propio motor, sino como parte de todo el sistema del avión,” explicó Dees. “Esta prueba confirmó que todos los componentes – software, enlaces mecánicos y leyes de control – funcionan juntos según lo previsto.” 

El éxito de la prueba confirmó la habilidad de la aeronave para controlar la velocidad con precisión, lo cual será muy invaluable durante el vuelo. Esta capacidad aumentará la seguridad de los pilotos, permitiéndoles enfocarse en otros aspectos críticos de la operación de vuelo. 

“El piloto va a estar muy ocupado durante el primer vuelo, asegurándose de que la aeronave sea estable y controlable,” dijo Dees. “Al tener la función del mantenimiento automático de velocidad, de reduce parte de esa carga de trabajo, lo que hace que el primer vuelo sea mucho más seguro.” 

Inicialmente el equipo tenía planeado comprobar el mantenimiento automático de velocidad como parte de una próxima serie de pruebas en tierra donde alimentarían la aeronave con un sólido conjunto de datos para verificar su funcionalidad tanto en condiciones normales como de fallo, conocidas como pruebas de pájaro de aluminio (una estructura que se utiliza para probar los sistemas de una aeronave en un laboratorio, simulando un vuelo real). Sin embargo, el equipo se dio cuenta que había una oportunidad de probarlo antes. 

“Fue un objetivo de oportunidad,” dijo Dees. “Nos dimos cuenta de que estábamos listos para probar el mantenimiento automático de velocidad del motor por separado mientras otros sistemas continuaban con la finalización de su software. Si podemos aprender algo antes, siempre es mejor.” 

Con cada prueba exitosa, el equipo integrado de la NASA y Lockheed Martin acerca el X-59 al primer vuelo, y hacer historia en la aviación a través de su tecnología supersónica silenciosa. 

Artículo Traducido por: Priscila Valdez

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Details Last Updated Mar 31, 2025 EditorDede DiniusContactNicolas Cholulanicolas.h.cholula@nasa.gov Related Terms

• Aeronáutica
• NASA en español

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Armstrong Flight Research Center

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3 min read

Preparations for Next Moonwalk Simulations Underway (and Underwater) El avión de investigación supersónico silencioso X-59 de la NASA se encuentra en una rampa de Lockheed Martin Skunk Works en Palmdale, California, durante el atardecer. Esta aeronave única en su tipo es propulsada por un motor General Electric F414, una variante de los motores utilizados en los aviones F/A-18. El motor está montado sobre el fuselaje para reducir la cantidad de ondas de choque que llegan al suelo. El X-59 es la pieza central de la misión Quesst de la NASA, que busca demostrar el vuelo supersónico silencioso y permitir futuros viajes comerciales sobre tierra – más rápidos que la velocidad del sonido.Lockheed Martin Corporation/Garry Tice El avión de investigación supersónico silencioso X-59 de la NASA se encuentra en una rampa de Lockheed Martin Skunk Works en Palmdale, California, durante el atardecer. Esta aeronave única en su tipo es propulsada por un motor General Electric F414, una variante de los motores utilizados en los aviones F/A-18. El motor está montado sobre el fuselaje para reducir la cantidad de ondas de choque que llegan al suelo. El X-59 es la pieza central de la misión Quesst de la NASA, que busca demostrar el vuelo supersónico silencioso y permitir futuros viajes comerciales sobre tierra – más rápidos que la velocidad del sonido.Lockheed Martin Corporation/Garry Tice

Read this story in English here.

El equipo detrás del X-59 de la NASA completó en marzo otra prueba crítica en tierra, garantizando que el silencioso avión supersónico será capaz de mantener una velocidad específica durante su funcionamiento. Esta prueba, conocida como mantenimiento automático de velocidad del motor, es el más reciente marcador de progreso a medida que el X-59 se acerca a su primer vuelo este año. 

“El mantenimiento automático de la velocidad del motor es básicamente la versión de control de crucero de la aeronave,” explicó Paul Dees, jefe adjunto de propulsión de la NASA del X-59 en el Centro de Investigación de Vuelo Armstrong de la agencia en Edwards, California. “El piloto activa el control de velocidad a su velocidad actual y luego puede aumentarla o ajustarla gradualmente según sea necesario.” 

El equipo del X-59 ya había realizado una prueba similar en el motor, pero sólo como un sistema aislado. La prueba de marzo verificó que la retención de velocidad funciona correctamente tras su integración en la aviónica de la aeronave. 

“Necesitábamos verificar que el mantenimiento automático de velocidad funcionara no sólo dentro del propio motor, sino como parte de todo el sistema del avión,” explicó Dees. “Esta prueba confirmó que todos los componentes – software, enlaces mecánicos y leyes de control – funcionan juntos según lo previsto.” 

El éxito de la prueba confirmó la habilidad de la aeronave para controlar la velocidad con precisión, lo cual será muy invaluable durante el vuelo. Esta capacidad aumentará la seguridad de los pilotos, permitiéndoles enfocarse en otros aspectos críticos de la operación de vuelo. 

“El piloto va a estar muy ocupado durante el primer vuelo, asegurándose de que la aeronave sea estable y controlable,” dijo Dees. “Al tener la función del mantenimiento automático de velocidad, de reduce parte de esa carga de trabajo, lo que hace que el primer vuelo sea mucho más seguro.” 

Inicialmente el equipo tenía planeado comprobar el mantenimiento automático de velocidad como parte de una próxima serie de pruebas en tierra donde alimentarían la aeronave con un sólido conjunto de datos para verificar su funcionalidad tanto en condiciones normales como de fallo, conocidas como pruebas de pájaro de aluminio (una estructura que se utiliza para probar los sistemas de una aeronave en un laboratorio, simulando un vuelo real). Sin embargo, el equipo se dio cuenta que había una oportunidad de probarlo antes. 

“Fue un objetivo de oportunidad,” dijo Dees. “Nos dimos cuenta de que estábamos listos para probar el mantenimiento automático de velocidad del motor por separado mientras otros sistemas continuaban con la finalización de su software. Si podemos aprender algo antes, siempre es mejor.” 

Con cada prueba exitosa, el equipo integrado de la NASA y Lockheed Martin acerca el X-59 al primer vuelo, y hacer historia en la aviación a través de su tecnología supersónica silenciosa. 

Artículo Traducido por: Priscila Valdez

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Details Last Updated Mar 31, 2025 EditorDede DiniusContactNicolas Cholulanicolas.h.cholula@nasa.gov Related Terms

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Based at NASA’s Johnson Space Center in Houston, the Astromaterials Research and Exploration Science Division, or ARES, curates the most extensive collection of extraterrestrial materials on Earth, ranging from microscopic cosmic dust particles to Apollo-era Moon rocks. Soon, ARES’ team of world-leading sample scientists hopes to add something new to its collection – lunar samples from the Moon’s South Pole region. 

As the Artemis campaign sample curation lead, Dr. Juliane Gross is helping ARES and NASA prepare to collect and return those samples safely. “I’m responsible for representing the voice of the Moon rocks and advocating for their protection, preservation, and maintaining their integrity during the planning and execution of all stages of the different Artemis sample return missions,” she said. 

Juliane Gross leads a geology lesson for Artemis II crew members as part of their field training in Iceland in 2024.NASA

Her multifaceted role includes preparing the Johnson facility that will receive new lunar samples, developing curation strategies, and collaborating with mission teams to plan sampling operations, which encompass collection, handling, transport, and storage processes for all stages of Artemis missions. She trains program managers and engineers on the importance of sample return and teaches crew members how to identify lunar samples and collect them without contamination. She also works with the different programs and teams that oversee the vehicles used at different stages of lunar missions – collaborating with the human landing system team around tool storage and delivery to the lunar surface, the Orion Program to coordinate sample stowage for the return to Earth, and Exploration Ground Systems to plan sample recovery after splashdown.  

Once samples are returned to Earth, Gross and the ARES curation team will conduct a preliminary examination of the materials and release a sample catalog from which members of the global scientific community may request loans to carry out their respective research. 

Working across Artemis teams raised an unexpected but fun challenge for Gross – learning to communicate effectively with colleagues who have different academic and professional backgrounds. “Scientists like me speak a different language than engineers, and we all speak a different language than managers or the general public,” she said. “I have worked hard to find common vocabulary and to ‘translate’ science needs into the different types of languages that exist within the Artemis campaign. I’m trying to use our differences as strengths to enable mission success and to connect and build relationships with all these different teams through my love and passion for the Moon and rocks from the Moon.” 

That passion emerged shortly after Gross completed her Ph.D. in geology, while working on lunar samples with the Lunar and Planetary Institute. She went on to become a research scientist with the American Museum of Natural History in New York, and then a tenured professor of planetary sciences at Rutgers University in Piscataway, New Jersey.  

In 2019, NASA asked Gross to join the Apollo Next Generation Sample Analysis Program. Under the program, NASA preserved some of the 382 kilograms of lunar samples returned by Apollo missions, keeping them sealed for future generations to open and analyze. “NASA had the foresight to understand that technology would evolve and our level of sophistication for handling and examining samples would greatly increase,” Gross said.  

She and two other scientists had the incredible opportunity to open and examine two samples returned by Apollo 17. Their work served as a practice run for Artemis sample returns while building upon the fundamental insights into the shared origin and history of Earth and the Moon that scientists previously derived from other Apollo samples. For example, the team extracted gas from one sample that will provide information about the volatiles that future lunar missions may encounter around the Moon’s South Pole.  

“The Apollo Next Generation Sample Analysis Program linked the first generation of lunar explorers from Apollo with future explorers of the Moon with Artemis,” Gross said. “I’m very proud to have played such an important role in this initiative that now feeds forward to Artemis.” 

Juliane Gross examines lunar samples returned by Apollo 17 in Johnson Space Center’s Lunar Sample Laboratory Facility. NASA

Gross’ connection with NASA began even earlier in her career. She was selected to join the agency-sponsored Antarctic Search for Meteorites team and lived in the deep ice fields of Antarctica for two months with seven other people. “We lived in tiny two-person tents without any support and recovered a total of 263 space rocks under challenging conditions,” she said. “I experienced the powerful forces of Antarctica and traveled 332 miles on skidoos. My body changed in the cold – I stuffed my face with enough butter, chocolate, and peanut M&Ms to last a lifetime and yet I lost weight.”  

This formative experience taught Gross to find and celebrate beauty, even in her toughest moments. “I drank tea made with Antarctic glacier ice that is thousands to millions of years old. I will never forget the beautiful bell-like sounds that snow crystals make when being blown across the ice, the rainbow-sparkling ice crystals on a really cold day, the vast expanses of ice sheets looking like oceans frozen in eternity, and the icy bite of the wind on any unprotected skin that made me feel so alive and reminded me how vulnerable and precious life is,” she said. “And I will never ever forget the thrill and utter joy of finding a meteorite that you know no one on this planet has ever seen before you.”  

Gross ultimately received the Antarctica Service Medal of the United States Armed Forces from the U.S. Department of Defense for her work. 

Juliane Gross returns to McMurdo Station in Antarctica after working in the deep field for two months as part of the Antarctic Search for Meteorites team.Image courtesy of Juliane Gross

Transitioning from full-time academia to her current position at NASA has been a big adjustment for Gross, but she has learned to love the change and the growth opportunities that come with it. “Being part of this incredible moment in history when we are about to return to the Moon with Artemis, our Apollo of today, feels so special and humbling that it made the transition easier,” she said.  

The job has also increased Gross’ love and excitement for space exploration and reminds her every day why sample return missions are important. “The Moon is a museum of planetary history,” she said. “It has recorded and preserved the changes that affected the Earth-Moon system and is the best and most accessible place in the solar system to study planet-altering processes that have affected our corner of the universe.”  

Still, “The Moon is only our next frontier,” she said. “Keep looking up and never give up. Ad astra!” 

Watch below to learn about NASA’s rich history of geology training and hear how scientists and engineers are getting ready to bring back samples that will help us learn about the origins of our solar system.

Based at NASA’s Johnson Space Center in Houston, the Astromaterials Research and Exploration Science Division, or ARES, curates the most extensive collection of extraterrestrial materials on Earth, ranging from microscopic cosmic dust particles to Apollo-era Moon rocks. Soon, ARES’ team of world-leading sample scientists hopes to add something new to its collection – lunar samples from the Moon’s South Pole region. 

As the Artemis campaign sample curation lead, Dr. Juliane Gross is helping ARES and NASA prepare to collect and return those samples safely. “I’m responsible for representing the voice of the Moon rocks and advocating for their protection, preservation, and maintaining their integrity during the planning and execution of all stages of the different Artemis sample return missions,” she said. 

Juliane Gross leads a geology lesson for Artemis II crew members as part of their field training in Iceland in 2024.NASA

Her multifaceted role includes preparing the Johnson facility that will receive new lunar samples, developing curation strategies, and collaborating with mission teams to plan sampling operations, which encompass collection, handling, transport, and storage processes for all stages of Artemis missions. She trains program managers and engineers on the importance of sample return and teaches crew members how to identify lunar samples and collect them without contamination. She also works with the different programs and teams that oversee the vehicles used at different stages of lunar missions – collaborating with the human landing system team around tool storage and delivery to the lunar surface, the Orion Program to coordinate sample stowage for the return to Earth, and Exploration Ground Systems to plan sample recovery after splashdown.  

Once samples are returned to Earth, Gross and the ARES curation team will conduct a preliminary examination of the materials and release a sample catalog from which members of the global scientific community may request loans to carry out their respective research. 

Working across Artemis teams raised an unexpected but fun challenge for Gross – learning to communicate effectively with colleagues who have different academic and professional backgrounds. “Scientists like me speak a different language than engineers, and we all speak a different language than managers or the general public,” she said. “I have worked hard to find common vocabulary and to ‘translate’ science needs into the different types of languages that exist within the Artemis campaign. I’m trying to use our differences as strengths to enable mission success and to connect and build relationships with all these different teams through my love and passion for the Moon and rocks from the Moon.” 

That passion emerged shortly after Gross completed her Ph.D. in geology, while working on lunar samples with the Lunar and Planetary Institute. She went on to become a research scientist with the American Museum of Natural History in New York, and then a tenured professor of planetary sciences at Rutgers University in Piscataway, New Jersey.  

In 2019, NASA asked Gross to join the Apollo Next Generation Sample Analysis Program. Under the program, NASA preserved some of the 382 kilograms of lunar samples returned by Apollo missions, keeping them sealed for future generations to open and analyze. “NASA had the foresight to understand that technology would evolve and our level of sophistication for handling and examining samples would greatly increase,” Gross said.  

She and two other scientists had the incredible opportunity to open and examine two samples returned by Apollo 17. Their work served as a practice run for Artemis sample returns while building upon the fundamental insights into the shared origin and history of Earth and the Moon that scientists previously derived from other Apollo samples. For example, the team extracted gas from one sample that will provide information about the volatiles that future lunar missions may encounter around the Moon’s South Pole.  

“The Apollo Next Generation Sample Analysis Program linked the first generation of lunar explorers from Apollo with future explorers of the Moon with Artemis,” Gross said. “I’m very proud to have played such an important role in this initiative that now feeds forward to Artemis.” 

Juliane Gross examines lunar samples returned by Apollo 17 in Johnson Space Center’s Lunar Sample Laboratory Facility. NASA

Gross’ connection with NASA began even earlier in her career. She was selected to join the agency-sponsored Antarctic Search for Meteorites team and lived in the deep ice fields of Antarctica for two months with seven other people. “We lived in tiny two-person tents without any support and recovered a total of 263 space rocks under challenging conditions,” she said. “I experienced the powerful forces of Antarctica and traveled 332 miles on skidoos. My body changed in the cold – I stuffed my face with enough butter, chocolate, and peanut M&Ms to last a lifetime and yet I lost weight.”  

This formative experience taught Gross to find and celebrate beauty, even in her toughest moments. “I drank tea made with Antarctic glacier ice that is thousands to millions of years old. I will never forget the beautiful bell-like sounds that snow crystals make when being blown across the ice, the rainbow-sparkling ice crystals on a really cold day, the vast expanses of ice sheets looking like oceans frozen in eternity, and the icy bite of the wind on any unprotected skin that made me feel so alive and reminded me how vulnerable and precious life is,” she said. “And I will never ever forget the thrill and utter joy of finding a meteorite that you know no one on this planet has ever seen before you.”  

Gross ultimately received the Antarctica Service Medal of the United States Armed Forces from the U.S. Department of Defense for her work. 

Juliane Gross returns to McMurdo Station in Antarctica after working in the deep field for two months as part of the Antarctic Search for Meteorites team.Image courtesy of Juliane Gross

Transitioning from full-time academia to her current position at NASA has been a big adjustment for Gross, but she has learned to love the change and the growth opportunities that come with it. “Being part of this incredible moment in history when we are about to return to the Moon with Artemis, our Apollo of today, feels so special and humbling that it made the transition easier,” she said.  

The job has also increased Gross’ love and excitement for space exploration and reminds her every day why sample return missions are important. “The Moon is a museum of planetary history,” she said. “It has recorded and preserved the changes that affected the Earth-Moon system and is the best and most accessible place in the solar system to study planet-altering processes that have affected our corner of the universe.”  

Still, “The Moon is only our next frontier,” she said. “Keep looking up and never give up. Ad astra!” 

Watch below to learn about NASA’s rich history of geology training and hear how scientists and engineers are getting ready to bring back samples that will help us learn about the origins of our solar system.

Explore Hubble

• Hubble Home
• Overview
• Impact & Benefits
• Science
• Observatory
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5 min read

NASA Awards Astrophysics Postdoctoral Fellowships for 2025

The highly competitive NASA Hubble Fellowship Program (NHFP) recently named 24 new fellows to its 2025 class. The NHFP fosters excellence and leadership in astrophysics by supporting exceptionally promising and innovative early-career astrophysicists. Over 650 applicants vied for the 2025 fellowships. Each fellowship provides the awardee up to three years of support at a U.S. institution.

Once selected, fellows are named to one of three sub-categories corresponding to three broad scientific questions that NASA seeks to answer about the universe:

How does the universe work? – Einstein Fellows

How did we get here? – Hubble Fellows

Are we alone? – Sagan Fellows

“The 2025 class of the NASA Hubble Fellowship Program is comprised of outstanding NASA Astrophysics researchers,” said Shawn Domagal-Goldman, acting director of the Astrophysics Division at NASA Headquarters in Washington. “This class of competitively-selected fellows will inspire future generations through the products of their research, and by sharing the results of that work with the public. Their efforts will help NASA continue its worldwide leadership in space-based astrophysics research.”

The class of 2025 NHFP Fellows are shown in this photo montage (left to right, top to bottom): The Einstein Fellows (seen in the blue hexagons) are: Shi-Fan Chen, Nicolas Garavito Camargo, Jason Hinkle, Itai Linial, Kenzie Nimmo, Massimo Pascale, Elia Pizzati, Jillian Rastinejad and Aaron Tohuvavohu. The Hubble Fellows (seen in the red hexagons) are: Aliza Beverage, Anna de Graaff, Karia Dilbert, Emily Griffith, Viraj Karambelkar, Lindsey Kwok, Abigail Lee, Aaron Pearlman, Dominick Rowan, Nicholas Rui, Nadine Soliman, Bingjie Wang. The Sagan Fellows (seen in green hexagons) are: Kyle Franson, Caprice Phillips, and Keming Zhang.NASA, ESA, Megan Crane (Caltech/IPAC)

The list below provides the names of the 2025 awardees, their fellowship host institutions, and their proposed research topics.

The 2025 NHFP Einstein Fellows are:

• Shi-Fan Chen, Columbia University, Galaxies, Shapes and Weak Lensing in the Effective Field Theory of Large-Scale Structure
• Nicolas Garavito Camargo, University of Maryland, College Park, Local Group Galaxies in Disequilibrium; Building New Frameworks to Constrain the Nature of Dark Matter
• Jason Hinkle, University of Illinois, Urbana-Champaign, Nuclear Transients in the Golden Era of Time-Domain Astronomy
• Itai Linial, New York University, Repeating Nuclear Transients – Probes of Supermassive Black Holes and Their Environments
• Kenzie Nimmo, Northwestern University, From Glimmering Jewels to Cosmic Ubiquity: Unraveling the Origins of FRBs
• Massimo Pascale, University of California, Los Angeles, The Universe Seen Through Strong Gravitational Lensing
• Elia Pizzati, Harvard University, The Missing Link: Connecting Black Hole Growth and Quasar Light Curves in the Young Universe
• Jillian Rastinejad, University of Maryland, College Park, Illuminating the Explosive Origins of the Heavy Elements
• Aaron Tohuvavohu, California Institute of Technology, Ultraviolet Space Telescopes for the new era of Time Domain and Multi-Messenger Astronomy

The 2025 NHFP Hubble Fellows are:

• Aliza Beverage, Carnegie Observatories, Revealing Massive Galaxies Formation Using Chemical Abundances
• Anna de Graaff, Harvard University, Early giants in context: How could galaxies in the first billion years grow so rapidly?
• Karia Dibert, California Institute of Technology, Superconducting on-chip spectrometers for high-redshift astrophysics and cosmology
• Emily Griffith, University of Colorado, Boulder, Beyond Mg and Fe: Exploring Detailed Nucleosynthetic Patterns
• Viraj Karambelkar, Columbia University, The Anthropology of Merging Stars
• Lindsey Kwok, Northwestern University, Determining the Astrophysical Origins of White-Dwarf Supernovae with JWST Infrared Spectroscopy
• Abigail Lee, University of California, Berkeley, AGB Stars in the Era of NIR Astronomy: New Probes of Cosmology and Galaxy Evolution
• Aaron Pearlman, Massachusetts Institute of Technology, Pinpointing the Origins of Fast Radio Bursts and Tracing Baryons in the Cosmic Web
• Dominick Rowan, University of California, Berkeley, Fundamental Stellar Parameters Across the Hertzsprung-Russell Diagram
• Nicholas Rui, Princeton University, A seismic atlas of the stellar merger sky
• Nadine Soliman, Institute for Advanced Study, Micro Foundations, Macro Realities: Modeling the Multi-scale Physics Shaping Planets, Stars and Galaxies
• Bingjie Wang, Princeton University, Inference at the Edge of the Universe

The 2025 NHFP Sagan Fellows are:

• Kyle Franson, University of California, Santa Cruz, Mapping the Formation, Migration, and Thermal Evolution of Giant Planets with Direct Imaging and Astrometry
• Caprice Phillips, University of California, Santa Cruz, Aging in the Cosmos: JWST Insights into the Evolution of Brown Dwarf Atmospheres and Clouds
• Keming Zhang, Massachusetts Institute of Technology, Understanding the Origin and Abundance of Free-Floating Planets via Microlensing and Machine Learning

The class of 2025 NHFP Fellows are shown in this photo montage (left to right, top to bottom): The Einstein Fellows (seen in the blue hexagons) are: Shi-Fan Chen, Nicolas Garavito Camargo, Jason Hinkle, Itai Linial, Kenzie Nimmo, Massimo Pascale, Elia Pizzati, Jillian Rastinejad and Aaron Tohuvavohu.

The Hubble Fellows (seen in the red hexagons) are: Aliza Beverage, Anna de Graaff, Karia Dilbert, Emily Griffith, Viraj Karambelkar, Lindsey Kwok, Abigail Lee, Aaron Pearlman, Dominick Rowan, Nicholas Rui, Nadine Soliman, Bingjie Wang.

The Sagan Fellows (seen in green hexagons) are: Kyle Franson, Caprice Phillips, and Keming Zhang.

For short bios and photos, please visit the link at the end of the article.

An important part of the NHFP is the annual Symposium, which allows Fellows the opportunity to present results of their research, and to meet each other and the scientific and administrative staff who manage the program. The 2024 symposium was held at the NASA Exoplanet Science Institute (NExScI) in Pasadena, California. Science topics ranged through exoplanets, gravitational waves, fast radio bursts, cosmology and more. Non-science sessions included discussions about career paths and developing mentorship skills, as well as an open mic highlighting an array of talents other than astrophysics.

The Space Telescope Science Institute in Baltimore, Maryland, administers the NHFP on behalf of NASA, in collaboration with the Chandra X-ray Center at the Smithsonian Astrophysical Observatory in Cambridge, Massachusetts, and the NASA Exoplanet Science Institute and the Jet Propulsion Laboratory, in Pasadena, California.

Short bios and photos of the 2025 NHFP Fellows can be found at:
https://www.stsci.edu/stsci-research/fellowships/nasa-hubble-fellowship-program/2025-nhfp-fellows

Facebook logo @NASAHubble @NASAHubble Instagram logo @NASAHubble Related Images & Videos 2025 NHFP Fellows

The class of 2025 NHFP Fellows are shown in this photo montage.

Share

Details Last Updated Mar 31, 2025 EditorAndrea GianopoulosLocationNASA Goddard Space Flight Center Related Terms

• Hubble Space Telescope
• Astrophysics
• Astrophysics Division
• Goddard Space Flight Center

Explore Hubble

• Hubble Home
• Overview
• Impact & Benefits
• Science
• Observatory
• Team
• News
• Multimedia
• More

5 min read

NASA Awards Astrophysics Postdoctoral Fellowships for 2025

The highly competitive NASA Hubble Fellowship Program (NHFP) recently named 24 new fellows to its 2025 class. The NHFP fosters excellence and leadership in astrophysics by supporting exceptionally promising and innovative early-career astrophysicists. Over 650 applicants vied for the 2025 fellowships. Each fellowship provides the awardee up to three years of support at a U.S. institution.

Once selected, fellows are named to one of three sub-categories corresponding to three broad scientific questions that NASA seeks to answer about the universe:

How does the universe work? – Einstein Fellows

How did we get here? – Hubble Fellows

Are we alone? – Sagan Fellows

“The 2025 class of the NASA Hubble Fellowship Program is comprised of outstanding NASA Astrophysics researchers,” said Shawn Domagal-Goldman, acting director of the Astrophysics Division at NASA Headquarters in Washington. “This class of competitively-selected fellows will inspire future generations through the products of their research, and by sharing the results of that work with the public. Their efforts will help NASA continue its worldwide leadership in space-based astrophysics research.”

The class of 2025 NHFP Fellows are shown in this photo montage (left to right, top to bottom): The Einstein Fellows (seen in the blue hexagons) are: Shi-Fan Chen, Nicolas Garavito Camargo, Jason Hinkle, Itai Linial, Kenzie Nimmo, Massimo Pascale, Elia Pizzati, Jillian Rastinejad and Aaron Tohuvavohu. The Hubble Fellows (seen in the red hexagons) are: Aliza Beverage, Anna de Graaff, Karia Dilbert, Emily Griffith, Viraj Karambelkar, Lindsey Kwok, Abigail Lee, Aaron Pearlman, Dominick Rowan, Nicholas Rui, Nadine Soliman, Bingjie Wang. The Sagan Fellows (seen in green hexagons) are: Kyle Franson, Caprice Phillips, and Keming Zhang.NASA, ESA, Megan Crane (Caltech/IPAC)

The list below provides the names of the 2025 awardees, their fellowship host institutions, and their proposed research topics.

The 2025 NHFP Einstein Fellows are:

• Shi-Fan Chen, Columbia University, Galaxies, Shapes and Weak Lensing in the Effective Field Theory of Large-Scale Structure
• Nicolas Garavito Camargo, University of Maryland, College Park, Local Group Galaxies in Disequilibrium; Building New Frameworks to Constrain the Nature of Dark Matter
• Jason Hinkle, University of Illinois, Urbana-Champaign, Nuclear Transients in the Golden Era of Time-Domain Astronomy
• Itai Linial, New York University, Repeating Nuclear Transients – Probes of Supermassive Black Holes and Their Environments
• Kenzie Nimmo, Northwestern University, From Glimmering Jewels to Cosmic Ubiquity: Unraveling the Origins of FRBs
• Massimo Pascale, University of California, Los Angeles, The Universe Seen Through Strong Gravitational Lensing
• Elia Pizzati, Harvard University, The Missing Link: Connecting Black Hole Growth and Quasar Light Curves in the Young Universe
• Jillian Rastinejad, University of Maryland, College Park, Illuminating the Explosive Origins of the Heavy Elements
• Aaron Tohuvavohu, California Institute of Technology, Ultraviolet Space Telescopes for the new era of Time Domain and Multi-Messenger Astronomy

The 2025 NHFP Hubble Fellows are:

• Aliza Beverage, Carnegie Observatories, Revealing Massive Galaxies Formation Using Chemical Abundances
• Anna de Graaff, Harvard University, Early giants in context: How could galaxies in the first billion years grow so rapidly?
• Karia Dibert, California Institute of Technology, Superconducting on-chip spectrometers for high-redshift astrophysics and cosmology
• Emily Griffith, University of Colorado, Boulder, Beyond Mg and Fe: Exploring Detailed Nucleosynthetic Patterns
• Viraj Karambelkar, Columbia University, The Anthropology of Merging Stars
• Lindsey Kwok, Northwestern University, Determining the Astrophysical Origins of White-Dwarf Supernovae with JWST Infrared Spectroscopy
• Abigail Lee, University of California, Berkeley, AGB Stars in the Era of NIR Astronomy: New Probes of Cosmology and Galaxy Evolution
• Aaron Pearlman, Massachusetts Institute of Technology, Pinpointing the Origins of Fast Radio Bursts and Tracing Baryons in the Cosmic Web
• Dominick Rowan, University of California, Berkeley, Fundamental Stellar Parameters Across the Hertzsprung-Russell Diagram
• Nicholas Rui, Princeton University, A seismic atlas of the stellar merger sky
• Nadine Soliman, Institute for Advanced Study, Micro Foundations, Macro Realities: Modeling the Multi-scale Physics Shaping Planets, Stars and Galaxies
• Bingjie Wang, Princeton University, Inference at the Edge of the Universe

The 2025 NHFP Sagan Fellows are:

• Kyle Franson, University of California, Santa Cruz, Mapping the Formation, Migration, and Thermal Evolution of Giant Planets with Direct Imaging and Astrometry
• Caprice Phillips, University of California, Santa Cruz, Aging in the Cosmos: JWST Insights into the Evolution of Brown Dwarf Atmospheres and Clouds
• Keming Zhang, Massachusetts Institute of Technology, Understanding the Origin and Abundance of Free-Floating Planets via Microlensing and Machine Learning

The class of 2025 NHFP Fellows are shown in this photo montage (left to right, top to bottom): The Einstein Fellows (seen in the blue hexagons) are: Shi-Fan Chen, Nicolas Garavito Camargo, Jason Hinkle, Itai Linial, Kenzie Nimmo, Massimo Pascale, Elia Pizzati, Jillian Rastinejad and Aaron Tohuvavohu.

The Hubble Fellows (seen in the red hexagons) are: Aliza Beverage, Anna de Graaff, Karia Dilbert, Emily Griffith, Viraj Karambelkar, Lindsey Kwok, Abigail Lee, Aaron Pearlman, Dominick Rowan, Nicholas Rui, Nadine Soliman, Bingjie Wang.

The Sagan Fellows (seen in green hexagons) are: Kyle Franson, Caprice Phillips, and Keming Zhang.

For short bios and photos, please visit the link at the end of the article.

An important part of the NHFP is the annual Symposium, which allows Fellows the opportunity to present results of their research, and to meet each other and the scientific and administrative staff who manage the program. The 2024 symposium was held at the NASA Exoplanet Science Institute (NExScI) in Pasadena, California. Science topics ranged through exoplanets, gravitational waves, fast radio bursts, cosmology and more. Non-science sessions included discussions about career paths and developing mentorship skills, as well as an open mic highlighting an array of talents other than astrophysics.

The Space Telescope Science Institute in Baltimore, Maryland, administers the NHFP on behalf of NASA, in collaboration with the Chandra X-ray Center at the Smithsonian Astrophysical Observatory in Cambridge, Massachusetts, and the NASA Exoplanet Science Institute and the Jet Propulsion Laboratory, in Pasadena, California.

Short bios and photos of the 2025 NHFP Fellows can be found at:
https://www.stsci.edu/stsci-research/fellowships/nasa-hubble-fellowship-program/2025-nhfp-fellows

Facebook logo @NASAHubble @NASAHubble Instagram logo @NASAHubble Related Images & Videos 2025 NHFP Fellows

The class of 2025 NHFP Fellows are shown in this photo montage.

Share

Details Last Updated Mar 31, 2025 EditorAndrea GianopoulosLocationNASA Goddard Space Flight Center Related Terms

• Hubble Space Telescope
• Astrophysics
• Astrophysics Division
• Goddard Space Flight Center

If the full Moon suddenly faded, what would you see?

This was once a beach -- on ancient

NASA logo.

NASA has awarded SpaceX of Starbase, Texas, a modification under the NASA Launch Services (NLS) II contract to add Starship to their existing Falcon 9 and Falcon Heavy launch service offerings.

The NLS II contracts provide a broad range of commercial launch services for NASA’s planetary, Earth-observing, exploration, and scientific satellites. These high-priority, low and medium risk tolerant missions have full NASA technical oversight and mission assurance, resulting in the highest probability of launch success.

The NLS II contracts are multiple award, indefinite-delivery/indefinite-quantity, with an ordering period through June 2030 and an overall period of performance through December 2032. The contracts include an on-ramp provision that provides an opportunity annually for new launch service providers to add their launch service on an NLS II contract and compete for future missions and allows existing contractors to introduce launch services not currently on their NLS II contracts.

The contracts support the goals and objectives of the agency’s Science Mission Directorate, Space Operations Mission Directorate, Explorations Systems Development Mission Directorate, and the Space Technology Mission Directorate. Under the contracts, NASA also can provide launch services to other federal government agencies.

NASA’s Launch Services Program Office at the agency’s Kennedy Space Center in Florida manages the NLS II contracts. For more information about NASA and agency programs, visit:

https://www.nasa.gov

-end-

Tiernan Doyle / Joshua Finch
Headquarters, Washington
202-358-1600 / 202-358-1100
tiernan.doyle@.nasa.gov / joshua.a.finch@nasa.gov

Patti Bielling
Kennedy Space Center, Florida
321-501-7575
patricia.a.bielling@nasa.gov

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Details Last Updated Mar 31, 2025 LocationNASA Headquarters Related Terms

• NASA Directorates
• Kennedy Space Center
• Launch Services Office
• Launch Services Program
• Space Operations Mission Directorate

NASA logo.

NASA has awarded SpaceX of Starbase, Texas, a modification under the NASA Launch Services (NLS) II contract to add Starship to their existing Falcon 9 and Falcon Heavy launch service offerings.

The NLS II contracts provide a broad range of commercial launch services for NASA’s planetary, Earth-observing, exploration, and scientific satellites. These high-priority, low and medium risk tolerant missions have full NASA technical oversight and mission assurance, resulting in the highest probability of launch success.

The NLS II contracts are multiple award, indefinite-delivery/indefinite-quantity, with an ordering period through June 2030 and an overall period of performance through December 2032. The contracts include an on-ramp provision that provides an opportunity annually for new launch service providers to add their launch service on an NLS II contract and compete for future missions and allows existing contractors to introduce launch services not currently on their NLS II contracts.

The contracts support the goals and objectives of the agency’s Science Mission Directorate, Space Operations Mission Directorate, Explorations Systems Development Mission Directorate, and the Space Technology Mission Directorate. Under the contracts, NASA also can provide launch services to other federal government agencies.

NASA’s Launch Services Program Office at the agency’s Kennedy Space Center in Florida manages the NLS II contracts. For more information about NASA and agency programs, visit:

https://www.nasa.gov

-end-

Tiernan Doyle / Joshua Finch
Headquarters, Washington
202-358-1600 / 202-358-1100
tiernan.doyle@.nasa.gov / joshua.a.finch@nasa.gov

Patti Bielling
Kennedy Space Center, Florida
321-501-7575
patricia.a.bielling@nasa.gov

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Details Last Updated Mar 31, 2025 LocationNASA Headquarters Related Terms

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• Kennedy Space Center
• Launch Services Office
• Launch Services Program
• Space Operations Mission Directorate

2 min read

Preparations for Next Moonwalk Simulations Underway (and Underwater) Eric Garza, an engineering technician in the Experimental Fabrication Shop at NASA’s Armstrong Flight Research Center in Edwards, California, cuts plywood to size for temporary floorboards for the X-66 experimental demonstrator aircraft on Aug. 26, 2024.NASA/Steve Freeman

NASA designed temporary floorboards for the MD-90 aircraft to use while it is transformed into the X-66 experimental demonstrator aircraft. These floorboards will protect the original flooring and streamline the modification process.

Supporting the agency’s Sustainable Flight Demonstrator project, a small team in the Experimental Fabrication Shop at NASA’s Armstrong Flight Research Center in Edwards, California, built temporary floorboards to save the project time and resources. Repeated removal and installation of the original flooring during the modification process was time-consuming. Using temporary panels also ensures the original floorboards are protected and remain flightworthy for when modifications are complete, and the original flooring is reinstalled.

“The task of creating the temporary floorboards for the MD-90 involves a meticulous process aimed at facilitating modifications while maintaining safety and efficiency. The need for these temporary floorboards arises from the detailed procedure required to remove and reinstall the Original Equipment Manufacturer (OEM) floorboards,” said Jason Nelson, experimental fabrication lead. He is one of two members of the fabrication team – one engineering technician and one inspector – manufacturing about 50 temporary floorboards, which range in size from 20 inches by 36 inches to 42 inches by 75 inches.

A wood router cuts precise holes in plywood for temporary floorboards on Aug. 26, 2024, in the Experimental Fabrication Shop at NASA’s Armstrong Flight Research Center in Edwards, California. The flooring was designed for the X-66 experimental demonstrator aircraft. NASA/Steve Freeman

Nelson continued, “Since these OEM boards will be removed and reinstalled multiple times to accommodate necessary modifications, the temporary floorboards will save the team valuable time and resources. They will also provide the same level of safety and strength as the OEM boards, ensuring that the process runs smoothly without compromising quality.”

Designing and prototyping the flooring was a meticulous process, but the temporary solution plays a crucial role in optimizing time and resources as NASA works to advance safe and efficient air travel. The agency’s Sustainable Flight Demonstrator project seeks to inform the next generation of single-aisle airliners, the most common aircraft in commercial aviation fleets around the world. NASA partnered with Boeing to develop the X-66 experimental demonstrator aircraft.

NASA Armstrong’s Experimental Fabrication Shop carries out modifications and repair work on aircraft, ranging from the creation of something as small as an aluminum bracket to modifying wing spars, fuselage ribs, control surfaces, and other tasks to support missions.

Eric Garza, an engineering technician in the Experimental Fabrication Shop at NASA’s Armstrong Flight Research Center in Edwards, California, observes a wood router cut holes for temporary floorboards on Aug. 26, 2024. The flooring was designed for the X-66 experimental demonstrator aircraft.  NASA/Steve Freeman Share

Details Last Updated Mar 28, 2025 EditorDede DiniusContactSarah Mannsarah.mann@nasa.gov Related Terms

• Aeronautics
• Aeronautics Research Mission Directorate
• Armstrong Flight Research Center
• Green Aviation Tech
• Sustainable Flight Demonstrator

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2 min read

Preparations for Next Moonwalk Simulations Underway (and Underwater) Eric Garza, an engineering technician in the Experimental Fabrication Shop at NASA’s Armstrong Flight Research Center in Edwards, California, cuts plywood to size for temporary floorboards for the X-66 experimental demonstrator aircraft on Aug. 26, 2024.NASA/Steve Freeman

NASA designed temporary floorboards for the MD-90 aircraft to use while it is transformed into the X-66 experimental demonstrator aircraft. These floorboards will protect the original flooring and streamline the modification process.

Supporting the agency’s Sustainable Flight Demonstrator project, a small team in the Experimental Fabrication Shop at NASA’s Armstrong Flight Research Center in Edwards, California, built temporary floorboards to save the project time and resources. Repeated removal and installation of the original flooring during the modification process was time-consuming. Using temporary panels also ensures the original floorboards are protected and remain flightworthy for when modifications are complete, and the original flooring is reinstalled.

“The task of creating the temporary floorboards for the MD-90 involves a meticulous process aimed at facilitating modifications while maintaining safety and efficiency. The need for these temporary floorboards arises from the detailed procedure required to remove and reinstall the Original Equipment Manufacturer (OEM) floorboards,” said Jason Nelson, experimental fabrication lead. He is one of two members of the fabrication team – one engineering technician and one inspector – manufacturing about 50 temporary floorboards, which range in size from 20 inches by 36 inches to 42 inches by 75 inches.

A wood router cuts precise holes in plywood for temporary floorboards on Aug. 26, 2024, in the Experimental Fabrication Shop at NASA’s Armstrong Flight Research Center in Edwards, California. The flooring was designed for the X-66 experimental demonstrator aircraft. NASA/Steve Freeman

Nelson continued, “Since these OEM boards will be removed and reinstalled multiple times to accommodate necessary modifications, the temporary floorboards will save the team valuable time and resources. They will also provide the same level of safety and strength as the OEM boards, ensuring that the process runs smoothly without compromising quality.”

Designing and prototyping the flooring was a meticulous process, but the temporary solution plays a crucial role in optimizing time and resources as NASA works to advance safe and efficient air travel. The agency’s Sustainable Flight Demonstrator project seeks to inform the next generation of single-aisle airliners, the most common aircraft in commercial aviation fleets around the world. NASA partnered with Boeing to develop the X-66 experimental demonstrator aircraft.

NASA Armstrong’s Experimental Fabrication Shop carries out modifications and repair work on aircraft, ranging from the creation of something as small as an aluminum bracket to modifying wing spars, fuselage ribs, control surfaces, and other tasks to support missions.

Eric Garza, an engineering technician in the Experimental Fabrication Shop at NASA’s Armstrong Flight Research Center in Edwards, California, observes a wood router cut holes for temporary floorboards on Aug. 26, 2024. The flooring was designed for the X-66 experimental demonstrator aircraft.  NASA/Steve Freeman Share

Details Last Updated Mar 28, 2025 EditorDede DiniusContactSarah Mannsarah.mann@nasa.gov Related Terms

• Aeronautics
• Aeronautics Research Mission Directorate
• Armstrong Flight Research Center
• Green Aviation Tech
• Sustainable Flight Demonstrator

Explore More 2 min read The Sky’s Not the Limit: Testing Precision Landing Tech for Future Space Missions Article 5 days ago 5 min read NASA Demonstrates New Wildland Fire Airspace Management System Article 6 days ago 3 min read New Aircraft Wing Undergoes Crucial NASA Icing Testing Article 6 days ago Keep Exploring Discover More Topics From NASA

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• Mars Missions
• Mars Home

3 min read

Visiting Mars on the Way to the Outer Solar System

Written by Roger Wiens, Principal Investigator, SuperCam instrument / Co-Investigator, SHERLOC instrument at Purdue University

A portion of the “Sally’s Cove” outcrop where the Perseverance rover has been exploring. The radiating lines in the rock on the left of the image may indicate that it is a shatter cone, showing the effects of the shock wave from a nearby large impact. The image was taken by Mastcam-Z’s left camera on March 21, 2025 (Sol 1452, or Martian day 1,452 of the Mars 2020 mission) at the local mean solar time of 12:13:44. Mastcam-Z is a pair of cameras located high on the rover’s mast. This image was voted by the public as “Image of the week.” NASA/JPL-Caltech/ASU

Recently Mars has had a few Earthly visitors. On March 1, NASA’s Europa Clipper flew within 550 miles (884 kilometers) of the Red Planet’s surface on its way out to Jupiter. On March 12, the European Space Agency’s Hera spacecraft flew within about 3,100 miles (5,000 kilometers) of Mars, and only 300 kilometers from its moon, Deimos. Hera is on its way to study the binary asteroid Didymos and its moon Dimorphos. Next year, in May 2026, NASA’s Psyche mission is scheduled to buzz the Red Planet on its way to the metal-rich asteroid 16 Psyche, coming within a few thousand kilometers.

Why all these visits to Mars? You might at first think that they’re using Mars as an object of opportunity for their cameras, and you would be partially right. But Mars has more to give these missions than that. The main reason for these flybys is the extra speed that Mars’ velocity around the Sun can give them. The idea that visiting a planet can speed up a spacecraft is not all that obvious, because the same gravity that attracts the spacecraft on its way towards the planet will exert a backwards force as the spacecraft leaves the planet.

The key is in the direction that it approaches and leaves the planet. If the spacecraft leaves Mars heading in the direction that Mars is traveling around the Sun, it will gain speed in that direction, slingshotting it farther into the outer solar system. A spacecraft can typically gain several percent of its speed by performing such a slingshot flyby. The closer it gets to the planet, the bigger the effect. However, no mission wants to be slowed by the upper atmosphere, so several hundred kilometers is the closest that a mission should go. And the proximity to the planet is also affected by the exact direction the spacecraft needs to go when it leaves Mars.

Clipper’s Mars flyby was a slight exception, slowing down the craft — by about 1.2 miles per second (2 kilometers per second) — to steer it toward Earth for a second gravity assist in December 2026. That will push the spacecraft the rest of the way to Jupiter, for its 2030 arrival.

While observing Mars is not the main reason for their visits, many of the visiting spacecraft take the opportunity to use their cameras either to perform calibrations or to study the Red Planet and its moons.

During Clipper’s flyby over sols 1431-1432, Mastcam-Z was directed to watch the skies for signs of the interplanetary visitor. Clipper’s relatively large solar panels could have reflected enough sunlight for it to be seen in the Mars night sky, much as we can see satellites overhead from Earth. Unfortunately, the spacecraft entered the shadow of Mars just before it came into potential view above the horizon from Perseverance’s vantage point, so the sighting did not happen. But it was worth a try.

Meanwhile, back on the ground, Perseverance is performing something of a cliff-hanger. “Sally’s Cove” is a relatively steep rock outcrop in the outer portion of Jezero crater’s rim just north of “Broom Hill.” Perseverance made an approach during March 19-23, and has been exploring some dark-colored rocks along this outcrop, leaving the spherules behind for the moment. Who knows what Perseverance will find next?

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Mar 28, 2025

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Visiting Mars on the Way to the Outer Solar System

Written by Roger Wiens, Principal Investigator, SuperCam instrument / Co-Investigator, SHERLOC instrument at Purdue University

A portion of the “Sally’s Cove” outcrop where the Perseverance rover has been exploring. The radiating lines in the rock on the left of the image may indicate that it is a shatter cone, showing the effects of the shock wave from a nearby large impact. The image was taken by Mastcam-Z’s left camera on March 21, 2025 (Sol 1452, or Martian day 1,452 of the Mars 2020 mission) at the local mean solar time of 12:13:44. Mastcam-Z is a pair of cameras located high on the rover’s mast. This image was voted by the public as “Image of the week.” NASA/JPL-Caltech/ASU

Recently Mars has had a few Earthly visitors. On March 1, NASA’s Europa Clipper flew within 550 miles (884 kilometers) of the Red Planet’s surface on its way out to Jupiter. On March 12, the European Space Agency’s Hera spacecraft flew within about 3,100 miles (5,000 kilometers) of Mars, and only 300 kilometers from its moon, Deimos. Hera is on its way to study the binary asteroid Didymos and its moon Dimorphos. Next year, in May 2026, NASA’s Psyche mission is scheduled to buzz the Red Planet on its way to the metal-rich asteroid 16 Psyche, coming within a few thousand kilometers.

Why all these visits to Mars? You might at first think that they’re using Mars as an object of opportunity for their cameras, and you would be partially right. But Mars has more to give these missions than that. The main reason for these flybys is the extra speed that Mars’ velocity around the Sun can give them. The idea that visiting a planet can speed up a spacecraft is not all that obvious, because the same gravity that attracts the spacecraft on its way towards the planet will exert a backwards force as the spacecraft leaves the planet.

The key is in the direction that it approaches and leaves the planet. If the spacecraft leaves Mars heading in the direction that Mars is traveling around the Sun, it will gain speed in that direction, slingshotting it farther into the outer solar system. A spacecraft can typically gain several percent of its speed by performing such a slingshot flyby. The closer it gets to the planet, the bigger the effect. However, no mission wants to be slowed by the upper atmosphere, so several hundred kilometers is the closest that a mission should go. And the proximity to the planet is also affected by the exact direction the spacecraft needs to go when it leaves Mars.

Clipper’s Mars flyby was a slight exception, slowing down the craft — by about 1.2 miles per second (2 kilometers per second) — to steer it toward Earth for a second gravity assist in December 2026. That will push the spacecraft the rest of the way to Jupiter, for its 2030 arrival.

While observing Mars is not the main reason for their visits, many of the visiting spacecraft take the opportunity to use their cameras either to perform calibrations or to study the Red Planet and its moons.

During Clipper’s flyby over sols 1431-1432, Mastcam-Z was directed to watch the skies for signs of the interplanetary visitor. Clipper’s relatively large solar panels could have reflected enough sunlight for it to be seen in the Mars night sky, much as we can see satellites overhead from Earth. Unfortunately, the spacecraft entered the shadow of Mars just before it came into potential view above the horizon from Perseverance’s vantage point, so the sighting did not happen. But it was worth a try.

Meanwhile, back on the ground, Perseverance is performing something of a cliff-hanger. “Sally’s Cove” is a relatively steep rock outcrop in the outer portion of Jezero crater’s rim just north of “Broom Hill.” Perseverance made an approach during March 19-23, and has been exploring some dark-colored rocks along this outcrop, leaving the spherules behind for the moment. Who knows what Perseverance will find next?

Share

• 
  
  
• 
  
  
• 
  
  
• 
  
  

Details

Last Updated

Mar 28, 2025

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In this February 1944 publicity photo, men stand in front of turning vanes inside the Altitude Wind Tunnel (AWT) at the National Advisory Committee for Aeronautics Aircraft Engine Research Laboratory. The AWT was the only wind tunnel capable of testing full-size aircraft engines in simulated altitude conditions. A large wooden drive fan, located on the other side of these vanes, created wind speeds up to 500 miles per hour.