It is clear to everyone that astronomy at all events compels the soul to look upwards, and draws it from the things of this world to the other.

— Plato

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SpaceX aborts satellite launch 11 seconds before liftoff (video)

Space.com - Mon, 07/21/2025 - 7:21pm
SpaceX aborted the planned launch of two of SES' O3b mPOWER communications satellites just before liftoff on Monday evening (July 21). The company will try again tomorrow (July 22).
Categories: Astronomy

'Chaos' reigns beneath the ice of Jupiter moon Europa, James Webb Space Telescope reveals

Space.com - Mon, 07/21/2025 - 6:00pm
New observations from the James Webb Space Telescope (JWST) are painting a new picture of Jupiter's moon Europa and revealing the hidden chemistry of the icy moon's interior.
Categories: Astronomy

Sprinkling limestone on farms may offer an unexpected climate win

New Scientist Space - Cosmology - Mon, 07/21/2025 - 5:00pm
Farms commonly spread crushed limestone on fields to make the soil less acidic – and this practice can also help remove carbon dioxide from the atmosphere
Categories: Astronomy

Sprinkling limestone on farms may offer an unexpected climate win

New Scientist Space - Space Headlines - Mon, 07/21/2025 - 5:00pm
Farms commonly spread crushed limestone on fields to make the soil less acidic – and this practice can also help remove carbon dioxide from the atmosphere
Categories: Astronomy

Eclipse chasers share insider tips, travel advice and skywatching secrets for the 2026 total solar eclipse

Space.com - Mon, 07/21/2025 - 5:00pm
Our expert travel guide to the 2026 total solar eclipse in Greenland, Iceland and Spain is packed with insider tips, travel advice and skywatching secrets from seasoned eclipse chasers.
Categories: Astronomy

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APOD - Mon, 07/21/2025 - 4:00pm

What's happened in Hebes Chasma on Mars?


Categories: Astronomy, NASA

This new 'CosmoCube' moon orbiter could eavesdrop on whispers from the early universe

Space.com - Mon, 07/21/2025 - 4:00pm
U.K. scientists plan to send a small spacecraft to the moon's far side to detect faint radio signals emitted shortly after the Big Bang.
Categories: Astronomy

NASA’s SpaceX Crew-10 to Discuss Station Mission, Upcoming Return

NASA News - Mon, 07/21/2025 - 3:23pm
The crew of NASA’s SpaceX Crew-10 mission pictured aboard the International Space Station. From left to right: JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi, NASA astronauts Anne McClain and Nichole Ayers, and Roscosmos cosmonaut Kirill Peskov.Credit: NASA

Media are invited to hear from NASA’s SpaceX Crew-10 during a news conference beginning at 10:40 a.m. EDT, Friday, July 25, from the International Space Station.

NASA astronauts Anne McClain and Nichole Ayers, JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi, and Roscosmos cosmonaut Kirill Peskov will discuss their upcoming return to Earth on the agency’s YouTube channel.

Media interested in participating must contact the newsroom at NASA’s Johnson Space Center in Houston no later than 5 p.m., Thursday, July 24, at 281-483-5111 or jsccommu@mail.nasa.gov. To ask questions, media must dial into the news conference no later than 10 minutes prior to the start of the call. A copy of NASA’s media accreditation policy is online.

Crew-10 joined the Expedition 72 crew when arriving to the station in March. Throughout Expedition 72 and into Expedition 73, the crew aboard the space station contributed to hundreds of experiments, including testing expanded capabilities of existing hardware for pharmaceutical production in space, investigating how cells sense gravity, which is an important aspect of space biology, and examining the effects of microgravity on protein yields in microalgae, a potential source for life support, fuel, and food on long-duration missions.

The crew will depart the space station after the arrival of Crew-11 and a handover period. Ahead of Crew-10’s return, mission teams will review weather conditions at the splashdown sites off the coast of California prior to departure from station.

The mission is part of NASA’s Commercial Crew Program, which provides reliable access to space, maximizing the use of the station for research and development and supporting future missions beyond low Earth orbit by partnering with private companies to transport astronauts to and from the space station.

Follow updates on the Crew-10 mission at:

https://www.nasa.gov/blogs/crew-10

-end-

Claire O’Shea
Headquarters, Washington
202-358-1100
claire.a.o’shea@nasa.gov

Courtney Beasley
Johnson Space Center, Houston
281-483-5111
courtney.m.beasley@nasa.gov

Share Details Last Updated Jul 21, 2025 LocationNASA Headquarters Related Terms
Categories: NASA

NASA’s SpaceX Crew-10 to Discuss Station Mission, Upcoming Return

NASA - Breaking News - Mon, 07/21/2025 - 3:23pm
The crew of NASA’s SpaceX Crew-10 mission pictured aboard the International Space Station. From left to right: JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi, NASA astronauts Anne McClain and Nichole Ayers, and Roscosmos cosmonaut Kirill Peskov.Credit: NASA

Media are invited to hear from NASA’s SpaceX Crew-10 during a news conference beginning at 10:40 a.m. EDT, Friday, July 25, from the International Space Station.

NASA astronauts Anne McClain and Nichole Ayers, JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi, and Roscosmos cosmonaut Kirill Peskov will discuss their upcoming return to Earth on the agency’s YouTube channel.

Media interested in participating must contact the newsroom at NASA’s Johnson Space Center in Houston no later than 5 p.m., Thursday, July 24, at 281-483-5111 or jsccommu@mail.nasa.gov. To ask questions, media must dial into the news conference no later than 10 minutes prior to the start of the call. A copy of NASA’s media accreditation policy is online.

Crew-10 joined the Expedition 72 crew when arriving to the station in March. Throughout Expedition 72 and into Expedition 73, the crew aboard the space station contributed to hundreds of experiments, including testing expanded capabilities of existing hardware for pharmaceutical production in space, investigating how cells sense gravity, which is an important aspect of space biology, and examining the effects of microgravity on protein yields in microalgae, a potential source for life support, fuel, and food on long-duration missions.

The crew will depart the space station after the arrival of Crew-11 and a handover period. Ahead of Crew-10’s return, mission teams will review weather conditions at the splashdown sites off the coast of California prior to departure from station.

The mission is part of NASA’s Commercial Crew Program, which provides reliable access to space, maximizing the use of the station for research and development and supporting future missions beyond low Earth orbit by partnering with private companies to transport astronauts to and from the space station.

Follow updates on the Crew-10 mission at:

https://www.nasa.gov/blogs/crew-10

-end-

Claire O’Shea
Headquarters, Washington
202-358-1100
claire.a.o’shea@nasa.gov

Courtney Beasley
Johnson Space Center, Houston
281-483-5111
courtney.m.beasley@nasa.gov

Share Details Last Updated Jul 21, 2025 LocationNASA Headquarters Related Terms
Categories: NASA

Optimists Are Alike, but Pessimists Are Unique, Brain Scan Study Suggests

Scientific American.com - Mon, 07/21/2025 - 3:00pm

Optimists have similar patterns of brain activation when they think about the future—but pessimists are all different from one another, a brain scan study suggests

Categories: Astronomy

NASA's X-59 'quiet' supersonic jet rolls out for its 1st test drive (video)

Space.com - Mon, 07/21/2025 - 3:00pm
NASA recently took its new X-59 "quiet' supersonic jet for a drive during taxi tests, one of the final hurdles between the aircraft and its first flight.
Categories: Astronomy

These Massive Runaway Stars Were Birthed in a Chaotic Cluster

Universe Today - Mon, 07/21/2025 - 2:29pm

Mysteries abound in space. In the Tarantula Nebula, which lies in the Large Magellanic Cloud, astronomers used simulations to reconstruct how three stars were ejected from the star cluster R136, about 60,000 years ago. The analysis, published in Physical Review Letters, reveals that five stars were involved, an unexpected result.

Categories: Astronomy

The Most Massive Black Hole Merger Ever

Universe Today - Mon, 07/21/2025 - 2:29pm

Astronomers using the LIGO-Virgo-KAGRA gravitational wave detectors announced the most massive black hole merger ever seen. Two black holes crashed together, producing a final black hole with approximately 225 times the mass of the Sun. Designated GW231123, it was detected during the 2023 observing run, and appears to be from the collision of 100- and 140-stellar-mass black holes. Black holes this massive are hard to get through standard stellar evolution, but could be the results of previous mergers.

Categories: Astronomy

Supernova Cinematography: How NASA’s Roman Space Telescope Will Create a Movie of Exploding Stars

Universe Today - Mon, 07/21/2025 - 2:29pm

The Nancy Grace Roman Space Telescope isn't due to launch until May 2027, but astronomers are preparing for its science operations by running simulated operations. One of those involves supernovae, massive stars the end their lives in gargantuan explosions. Research shows that the Roman could find 100,000 supernovae in one of its surveys.

Categories: Astronomy

HWO Could Find Irrefutable Signs Of Life On Exoplanets

Universe Today - Mon, 07/21/2025 - 2:29pm

Searching for habitable exoplanets will require decades of work, new technologies, and new ideas. A lot of that effort seems to coalescing around the Habitable Worlds Observatory (HWO), a proposed mission expected to launch in the early 2040s that would be capable of directly imaging potentially habitable worlds, and, importantly, detecting features about them that could prove whether or not they host life as we know it. A new paper by exobiology specialists in Europe and the US, led by Svetlana Berdyugina of ISROL in Locarno, Switzerland, details an observational plan with HWO that could definitely prove that life exists on another planet - if they’re able to find one where it does anyway.

Categories: Astronomy

Some Planets Are Bigger Than We Thought

Sky & Telescope Magazine - Mon, 07/21/2025 - 2:19pm

More than 200 planets in the TESS catalogs may be bigger than originally estimated — putting initially Earth-size planets into the super-Earth category.

The post Some Planets Are Bigger Than We Thought appeared first on Sky & Telescope.

Categories: Astronomy

NASA Goddard Center Director Makenzie Lystrup Set to Depart

NASA News - Mon, 07/21/2025 - 2:04pm
Portrait of Dr. Makenzie Lystrup, director of NASA’s Goddard Space Flight Center in Greenbelt, Maryland.Credit: NASA

On Monday, NASA announced Dr. Makenzie Lystrup, director of NASA’s Goddard Space Flight Center in Greenbelt, Maryland, is set to leave the agency on Friday, Aug. 1.

As center director of Goddard, a role she has held since April 2023, Lystrup also was responsible for guiding the direction and management of multiple other NASA field installations including Wallops Flight Facility in Virginia, Katherine Johnson Independent Verification & Validation Facility in West Virginia, the White Sands Complex in New Mexico, and the Columbia Scientific Balloon Facility in Texas.

“Having served in a variety of science and aerospace civilian and government roles in her career, Makenzie has led development of, and/or contributed to a variety of NASA’s priority science missions including successful operations of our James Webb Space Telescope and Imaging X-Ray Polarimetry Explorer, as well as development of the agency’s Roman Space Telescope, and more,” said Vanessa Wyche, acting NASA associate administrator. “We’re grateful to Makenzie for her leadership at NASA Goddard for more than two years, including her work to inspire a Golden Age of explorers, scientists, and engineers.”

Throughout her time at NASA, Lystrup led Goddard’s workforce, which consists of more than 8,000 civil servants and contractors. Before joining the agency, Lystrup served as senior director for Ball’s Civil Space Advanced Systems and Business Development, where she managed new business activities for NASA, National Oceanic and Atmospheric Administration (NOAA), and other civilian U.S. government agencies as well as for academia and other science organizations. In addition, she served in the company’s Strategic Operations organization, based in Washington where she led Ball’s space sciences portfolio.

Prior to joining Ball, Lystrup worked as an American Institute of Physics – Acoustical Society of American Congressional Fellow from 2011 to 2012 where she managed a portfolio including technology, national defense, nuclear energy, and nuclear nonproliferation.

Lystrup also has served on boards and committees for several organizations to include the University Corporation for Atmospheric Research, International Society for Optics and Photonic, the University of Colorado, and the American Astronomical Society. She was named an American Association for the Advancement of Science fellow in 2019 for her distinguished record in the fields of planetary science and infrared astronomy, science policy and advocacy, and aerospace leadership. Lystrup also served as an AmeriCorps volunteer focusing on STEM education.

Lystrup holds a bachelor’s in physics from Portland State University and attended graduate school at University College London earning her doctorate in astrophysics. She was a National Science Foundation Astronomy & Astrophysics Postdoctoral Research Fellow spending time at the Laboratory for Atmospheric & Space Physics in Boulder, Colorado, and University of Liege in Belgium. As a planetary scientist and astronomer, Lystrup’s scientific work has been in using ground- and space-based astronomical observatories to understand the interactions and dynamics of planetary atmospheres and magnetospheres – the relationships between planets and their surrounding space environments.

Following Lystrup’s departure, NASA’s Cynthia Simmons will serve as acting center director. Simmons is the current deputy center director.

For more information about NASA’s work, visit:

https://www.nasa.gov

-end-

Cheryl Warner / Kathryn Hambleton
Headquarters, Washington
202-358-1600
cheryl.m.warner@nasa.gov / kathryn.hambleton@nasa.gov

Katy Mersmann
Goddard Space Flight Center, Greenbelt, Md.
301-377-1724
katy.mersmann@nasa.gov

Share Details Last Updated Jul 21, 2025 EditorJessica TaveauLocationNASA Headquarters Related Terms
Categories: NASA

NASA Goddard Center Director Makenzie Lystrup Set to Depart

NASA - Breaking News - Mon, 07/21/2025 - 2:04pm
Portrait of Dr. Makenzie Lystrup, director of NASA’s Goddard Space Flight Center in Greenbelt, Maryland.Credit: NASA

On Monday, NASA announced Dr. Makenzie Lystrup, director of NASA’s Goddard Space Flight Center in Greenbelt, Maryland, is set to leave the agency on Friday, Aug. 1.

As center director of Goddard, a role she has held since April 2023, Lystrup also was responsible for guiding the direction and management of multiple other NASA field installations including Wallops Flight Facility in Virginia, Katherine Johnson Independent Verification & Validation Facility in West Virginia, the White Sands Complex in New Mexico, and the Columbia Scientific Balloon Facility in Texas.

“Having served in a variety of science and aerospace civilian and government roles in her career, Makenzie has led development of, and/or contributed to a variety of NASA’s priority science missions including successful operations of our James Webb Space Telescope and Imaging X-Ray Polarimetry Explorer, as well as development of the agency’s Roman Space Telescope, and more,” said Vanessa Wyche, acting NASA associate administrator. “We’re grateful to Makenzie for her leadership at NASA Goddard for more than two years, including her work to inspire a Golden Age of explorers, scientists, and engineers.”

Throughout her time at NASA, Lystrup led Goddard’s workforce, which consists of more than 8,000 civil servants and contractors. Before joining the agency, Lystrup served as senior director for Ball’s Civil Space Advanced Systems and Business Development, where she managed new business activities for NASA, National Oceanic and Atmospheric Administration (NOAA), and other civilian U.S. government agencies as well as for academia and other science organizations. In addition, she served in the company’s Strategic Operations organization, based in Washington where she led Ball’s space sciences portfolio.

Prior to joining Ball, Lystrup worked as an American Institute of Physics – Acoustical Society of American Congressional Fellow from 2011 to 2012 where she managed a portfolio including technology, national defense, nuclear energy, and nuclear nonproliferation.

Lystrup also has served on boards and committees for several organizations to include the University Corporation for Atmospheric Research, International Society for Optics and Photonic, the University of Colorado, and the American Astronomical Society. She was named an American Association for the Advancement of Science fellow in 2019 for her distinguished record in the fields of planetary science and infrared astronomy, science policy and advocacy, and aerospace leadership. Lystrup also served as an AmeriCorps volunteer focusing on STEM education.

Lystrup holds a bachelor’s in physics from Portland State University and attended graduate school at University College London earning her doctorate in astrophysics. She was a National Science Foundation Astronomy & Astrophysics Postdoctoral Research Fellow spending time at the Laboratory for Atmospheric & Space Physics in Boulder, Colorado, and University of Liege in Belgium. As a planetary scientist and astronomer, Lystrup’s scientific work has been in using ground- and space-based astronomical observatories to understand the interactions and dynamics of planetary atmospheres and magnetospheres – the relationships between planets and their surrounding space environments.

Following Lystrup’s departure, NASA’s Cynthia Simmons will serve as acting center director. Simmons is the current deputy center director.

For more information about NASA’s work, visit:

https://www.nasa.gov

-end-

Cheryl Warner / Kathryn Hambleton
Headquarters, Washington
202-358-1600
cheryl.m.warner@nasa.gov / kathryn.hambleton@nasa.gov

Katy Mersmann
Goddard Space Flight Center, Greenbelt, Md.
301-377-1724
katy.mersmann@nasa.gov

Share Details Last Updated Jul 21, 2025 EditorJessica TaveauLocationNASA Headquarters Related Terms
Categories: NASA

These 3 popular skywatching star clusters may be branches of the same family tree

Space.com - Mon, 07/21/2025 - 2:00pm
The Orion Nebula, the Pleiades and the Hyades open clusters could represent the different phases of star clusters: baby, adolescent and elderly.
Categories: Astronomy

NASA Shares How to Save Camera 370-Million-Miles Away Near Jupiter

NASA News - Mon, 07/21/2025 - 1:54pm

5 min read

Preparations for Next Moonwalk Simulations Underway (and Underwater) The north polar region of Jupiter’s volcanic moon Io was captured by the JunoCam imager aboard NASA’s Juno during the spacecraft’s 57th close pass of the gas giant on Dec. 30, 2023. A technique called annealing was used to help repair radiation damage to the camera in time to capture this image. Image data: NASA/JPL-Caltech/SwRI/MSSS Image processing by Gerald Eichstädt

An experimental technique rescued a camera aboard the agency’s Juno spacecraft, offering lessons that will benefit other space systems that experience high radiation.

The mission team of NASA’s Jupiter-orbiting Juno spacecraft executed a deep-space move in December 2023 to repair its JunoCam imager to capture photos of the Jovian moon Io. Results from the long-distance save were presented during a technical session on July 16 at the Institute of Electrical and Electronics Engineers Nuclear & Space Radiation Effects Conference in Nashville.

JunoCam is a color, visible-light camera. The optical unit for the camera is located outside a titanium-walled radiation vault, which protects sensitive electronic components for many of Juno’s engineering and science instruments.

This is a challenging location because Juno’s travels carry it through the most intense planetary radiation fields in the solar system. While mission designers were confident JunoCam could operate through the first eight orbits of Jupiter, no one knew how long the instrument would last after that.

Throughout Juno’s first 34 orbits (its prime mission), JunoCam operated normally, returning images the team routinely incorporated into the mission’s science papers. Then, during its 47th orbit, the imager began showing hints of radiation damage. By orbit 56, nearly all the images were corrupted.

The graininess and horizontal lines seen in this JunoCam image show evidence that the camera aboard NASA’s Juno mission suffered radiation damage. The image, which captures one of the circumpolar cyclones on Jupiter’s north pole, was taken Nov. 22, 2023. NASA/JPL-Caltech/SwRI/MSSS Long Distance Microscopic Repair

While the team knew the issue may be tied to radiation, pinpointing what, specifically, was damaged within JunoCam was difficult from hundreds of millions of miles away. Clues pointed to a damaged voltage regulator that is vital to JunoCam’s power supply. With few options for recovery, the team turned to a process called annealing, where a material is heated for a specified period before slowly cooling. Although the process is not well understood, the idea is that the heating can reduce defects in the material.

“We knew annealing can sometimes alter a material like silicon at a microscopic level but didn’t know if this would fix the damage,” said JunoCam imaging engineer Jacob Schaffner of Malin Space Science Systems in San Diego, which designed and developed JunoCam and is part of the team that operates it. “We commanded JunoCam’s one heater to raise the camera’s temperature to 77 degrees Fahrenheit — much warmer than typical for JunoCam — and waited with bated breath to see the results.”

Soon after the annealing process finished, JunoCam began cranking out crisp images for the next several orbits. But Juno was flying deeper and deeper into the heart of Jupiter’s radiation fields with each pass. By orbit 55, the imagery had again begun showing problems. 

“After orbit 55, our images were full of streaks and noise,” said JunoCam instrument lead Michael Ravine of Malin Space Science Systems. “We tried different schemes for processing the images to improve the quality, but nothing worked. With the close encounter of Io bearing down on us in a few weeks, it was Hail Mary time: The only thing left we hadn’t tried was to crank JunoCam’s heater all the way up and see if more extreme annealing would save us.”

Test images sent back to Earth during the annealing showed little improvement the first week. Then, with the close approach of Io only days away, the images began to improve dramatically. By the time Juno came within 930 miles (1,500 kilometers) of the volcanic moon’s surface on Dec. 30, 2023, the images were almost as good as the day the camera launched, capturing detailed views of Io’s north polar region that revealed mountain blocks covered in sulfur dioxide frosts rising sharply from the plains and previously uncharted volcanos with extensive flow fields of lava.

Testing Limits

To date, the solar-powered spacecraft has orbited Jupiter 74 times. Recently, the image noise returned during Juno’s 74th orbit.

Since first experimenting with JunoCam, the Juno team has applied derivations of this annealing technique on several Juno instruments and engineering subsystems.

“Juno is teaching us how to create and maintain spacecraft tolerant to radiation, providing insights that will benefit satellites in orbit around Earth,” said Scott Bolton, Juno’s principal investigator from the Southwest Research Institute in San Antonio. “I expect the lessons learned from Juno will be applicable to both defense and commercial satellites as well as other NASA missions.”

More About Juno

NASA’s Jet Propulsion Laboratory, a division of Caltech in Pasadena, California, manages the Juno mission for the principal investigator, Scott Bolton, of the Southwest Research Institute in San Antonio. Juno is part of NASA’s New Frontiers Program, which is managed at NASA’s Marshall Space Flight Center in Huntsville, Alabama, for the agency’s Science Mission Directorate in Washington. The Italian Space Agency, Agenzia Spaziale Italiana, funded the Jovian InfraRed Auroral Mapper. Lockheed Martin Space in Denver built and operates the spacecraft. Various other institutions around the U.S. provided several of the other scientific instruments on Juno.

More information about Juno is at:

https://www.nasa.gov/juno

News Media Contact

DC Agle
Jet Propulsion Laboratory, Pasadena, Calif.
818-393-9011
agle@jpl.nasa.gov

Karen Fox / Molly Wasser
NASA Headquarters, Washington
202-358-1600
karen.c.fox@nasa.gov / molly.l.wasser@nasa.gov

Deb Schmid
Southwest Research Institute, San Antonio
210-522-2254
dschmid@swri.org

2025-091

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