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NASA Spotlight: Felipe Valdez, an Inspiring Engineer
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Preparations for Next Moonwalk Simulations Underway (and Underwater) Felipe Valdez, a NASA engineer at Armstrong Flight Research Center’s Dale Reed Subscale Flight Research Laboratory, stands next to a subscale model of the Hybrid Quadrotor (HQ-90) aircraft. NASA / Charles Genaro Vavuris
Felipe Valdez is someone who took advantage of every possible opportunity at NASA, working his way from undergraduate intern to his current job as a flight controls engineer.
Born in the United States but raised in Mexico, Valdez faced significant challenges growing up.
“My mom worked long hours, my dad battled addiction, and eventually, school became unaffordable,” Valdez said.
Determined to continue his education, Valdez made the difficult choice to leave his family and return to the U.S. But as a teenager, learning English and adapting to a new environment was a culture shock for him. Despite these changes, his curiosity for subjects such as math and science never wavered.
“As a kid, I’d always been good with numbers and fascinated by how things worked. Engineering combined both,” Valdez said. “This sparked my interest.”
While he pursued an undergraduate degree in mechanical engineering from California State University, Sacramento, guidance from his professor, Jose Granda, proved to be pivotal.
“He encouraged me to apply for a NASA internship,” Valdez said. “He’d actually been a Spanish-language spokesperson for a [space] shuttle mission, so hearing about someone with my background succeed gave me the confidence I needed to take that step.”
Valdez’s hard work paid off – he was selected as a NASA Office of STEM Engagement intern at the agency’s Johnson Space Center in Houston. There, he worked on software development for vehicle dynamics, actuators, and controller models for a space capsule in computer simulations.
“I couldn’t believe it,” Valdez said. “Getting that opportunity changed everything.”
This internship opened the door to a second with NASA this time at the agency’s Armstrong Flight Research Center in California. He had the chance to work on flight computer development for the Preliminary Research Aerodynamic Design to Lower Drag, an experimental flying wing design.
After these experiences, he was later accepted as an intern for NASA’s Pathways Program, a work-study program that offers the possibly of full-time employment at NASA after graduation.
“That was the start of my career at NASA, where my passion for aeronautics really took off,” he said.
Valdez was the first in his family to pursue higher education, earning his bachelor’s degree from Sacramento State and his master’s in mechanical and aerospace engineering from the University of California, Davis.
Today, he works as a NASA flight controls engineer under the Dynamics and Controls branch at Armstrong. Most of his experience has focused on flight simulation development and flight control design, particularly for distributed electric propulsion aircraft.
“It’s rewarding to be part of a group that’s focused on making aviation faster, quieter, and more sustainable,” Valdez said. “As a controls engineer, working on advanced aircraft concepts like distributed electric propulsion allows me design algorithms to directly control multiple motors, enhancing safety, controllability, and stability, while enabling cleaner, and quieter operations that push the boundaries of sustainable aviation.”
Throughout his career, Valdez has remained proud of his heritage. “I feel a strong sense of pride knowing that inclusion is one of our core values, opportunities are within reach for anyone at NASA.”
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Share Details Last Updated Oct 13, 2024 EditorJim BankeContactJessica Arreolajessica.arreola@nasa.govLocationArmstrong Flight Research Center Related TermsHera’s first images offer parting glimpse of Earth and Moon
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New Research Could Help Resolve the “Three-Body Problem”
Perhaps you’ve heard of the popular Netflix show and the science fiction novel on which it is based, The Three-Body Problem, by Chinese science fiction author Liu Cixin. The story’s premise is a star system where three stars orbit each other, which leads to periodic destruction on a planet orbiting one of them. As Isaac Newton described in his Philosophiæ Naturalis Principia Mathematica, the interaction of two massive bodies is easy to predict and calculate. However, the interaction of three bodies leads is where things become unpredictable (even chaotic) over time.
This problem has fascinated scientists ever since and remains one of the most famous unsolved mysteries in mathematics and theoretical physics. The theory states that the interaction of three gravitationally bound objects will evolve chaotically and in a way that is completely detached from their initial positions and velocities. However, in a recent study, an international team led by a researcher from the Niels Bohr Institute ran millions of simulations that showed “isles of regularity in a sea of chaos.” These results indicate that there could be a solution, or at least some predictability, to the Three-Body Problem.
The study was led by Alessandro Alberto Trani, a postdoctoral fellow at the University of Copenhagen’s Niels Bohr Institute (NBI), the Research Center for the Early Universe at The University of Tokyo, and the Okinawa Institute of Science and Technology (OIST). He was joined by researchers from the Universidad de Concepción in Chile, the American Museum of Natural History, the Leiden Observatory, and NASA’s Ames Research Center. The paper that details their findings was recently published in the journal Astronomy & Astrophysics.
Millions of simulations form a rough map of all conceivable outcomes when three objects meet, which is where the isles of regularity appear. Credit: Alessandro Alberto TraniTo investigate this problem, Trani and his colleagues used a software program he developed himself named Tsunami. This program calculates the movements of astronomical objects based on known physical laws, such as Newton’s Law of Universal Gravitation and Einstein’s Theory of General Relativity. They then set it to run millions of simulations of three-body encounters with specified parameters, including the positions of two co-orbiting objects (i.e., their phase along a 360-degree axis) and the angle of approach of the third object – varying by 90°. As Trani explained in a recent NBI Research News story:
“The Three-Body Problem is one of the most famous unsolvable problems in mathematics and theoretical physics. The theory states that when three objects meet, their interaction evolves chaotically, without regularity, and completely detached from the starting point. But our millions of simulations demonstrate that there are gaps in this chaos – ‘isles of regularity’ – which directly depend on how the three objects are positioned relative to each other when they meet, as well as their speed and angle of approach.”
The millions of simulations they conducted covered all possible combinations of this framework. The results formed a rough map of all conceivable outcomes from the threads of initial configurations, which is when the isles of regularity appeared. This discovery could lead to a deeper understanding of an otherwise impossible problem and represents a new challenge for researchers. Whereas it is possible to calculate our chaos using statistical methods, they become more complex when the chaos is interrupted by regularities. Said Trani:
“When some regions in this map of possible outcomes suddenly become regular, it throws off statistical probability calculations, leading to inaccurate predictions. Our challenge now is to learn how to blend statistical methods with the so-called numerical calculations, which offer high precision when the system behaves regularly. In that sense, my results have set us back to square one, but at the same time, they offer hope for an entirely new level of understanding in the long run.”
This illustration shows the merger of two supermassive black holes and the gravitational waves that ripple outward as the black holes spiral toward each other. Credit: LIGO/T. PyleSince the encounter of three objects in the Universe is a common occurrence, the Three-Body Problem is more than just a theoretical challenge. Trani hopes that this discovery will lead to a deeper understanding that will pave the way for improved astrophysics models:
“If we are to understand gravitational waves, which are emitted from black holes and other massive objects in motion, the interactions of black holes as they meet and merge are essential. Immense forces are at play, particularly when three of them meet. Therefore, our understanding of such encounters could be a key to comprehending phenomena such as gravitational waves, gravity itself and many other fundamental mysteries of the Universe.”
Further Reading: Neils Bohr Institute
The post New Research Could Help Resolve the “Three-Body Problem” appeared first on Universe Today.
Sols 4331-4333: Today’s Rover ABC – Aurora, Backwards Driving, and Chemistry, with a Side of Images
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Sols 4331-4333: Today’s Rover ABC – Aurora, Backwards Driving, and Chemistry, with a Side of Images This image shows just how variable and interesting the terrain is in the area that NASA’s Mars rover Curiosity is currently investigating. Curiosity captured this long-distance Remote Micro Imager (RMI) image using the Chemistry & Camera (ChemCam) aboard the rover on sol 4329 — Martian day 4,329 of the Mars Science Laboratory mission — on Oct. 10, 2024 at 02:30:12 UTC. NASA/JPL-Caltech/LANL
Earth planning date: Friday, Oct. 11, 2024
This blogger is in the United Kingdom, just north of London, where we yesterday had beautiful night skies with a red aurora that was even visible with the unaided eye, and looked stunning on photographs. That reminded me of the solar storm that made it all the way to Mars earlier this year. Here is my colleague Deborah’s blog about it: “Aurora Watch on Mars.” And, of course, that was a great opportunity to do atmospheric science and prepare for future crewed missions, to assess radiation that future astronauts might encounter. You can read about it in the article, “NASA Watches Mars Light Up During Epic Solar Storm.” But now, back from shiny red night skies north of London, and auroras on Mars six months ago, to today’s planning!
Power — always a negotiation! Today, I was the Science Operations Working Group chair, the one who has to watch for the more technical side of things, such as the question if all the activities will fit into the plan. Today there were many imaging ideas to capture the stunning landscape in detail with Mastcam and very close close-ups with the long-distance imaging capability of ChemCam (RMI). Overall, we have two long-distance RMIs in the plan to capture the details of the ridge we are investigating. You can see in the accompanying image an example from last sol of just how many stunning details we can see. I so want to go and pick up that smooth white-ish looking rock to find out if it is just the light that makes it so bright, or if the surface is different from the underside… but that’s just me, a mineralogist by training, used to wandering around a field site! Do you notice the different patterns — textures as we call them in geology — on the rocks to the left of that white-ish rock and the right of it? So much stunning detail, and we are getting two more RMI observations of 10 frames each in today’s plan! In addition there are more than 80 Mastcam frames planned. Lots of images to learn from!
Chemistry is also featuring in the plan. The rover is stable on its wheels, which means we can get the arm out and do an APXS measurement on the target “Midnight Lake,” which MAHLI also images. The LIBS investigations are seconding the APXS investigation on Midnight Lake, and add another target to the plan, “Pyramidal Pinnacle.” On the third sol there is an AEGIS, the LIBS measurement where the rover picks its own target before we here on Earth even see where it is! Power was especially tight today, because the CheMin team does some housekeeping, in particular looking at empty cells in preparation for the next drill. The atmosphere team adds many investigations to look out for dust devils and the dustiness of the atmosphere, and APXS measures the argon content of the atmosphere. This is a measure for the seasonal changes of the atmosphere, as argon is an inert gas that does not react with other components of the atmosphere. It is only controlled by the temperature in various places of the planet — mainly the poles. DAN continues to monitor water in the subsurface, and RAD — prominently featured during the solar storm I was talking about earlier — continues to collect data on the radiation environment.
Let’s close with a fun fact from planning today: During one of the meetings, the rover drivers were asked, “Are you driving backwards again?” … and the answer was yes! The reason: We need to make sure that in this rugged terrain, with its many interesting walls (interesting for the geologists!), the antenna can still see Earth when we want to send the plan. So the drive on sol 4332 is all backwards. I am glad we have hazard cameras on the front and the back of the vehicle!
Written by Susanne Schwenzer, Planetary Geologist at The Open University
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Webb Observations Shed New Light on Cosmic Reionization
The “Epoch of Reionization” was a critical period for cosmic evolution and has always fascinated and mystified astronomers. During this epoch, the first stars and galaxies formed and reionized the clouds of neutral hydrogen that permeated the Universe. This ended the Cosmic Dark Ages and led to the Universe becoming “transparent,” what astronomers refer to as “Cosmic Dawn.” According to our current cosmological models, reionization lasted from 380,000 to 1 billion years after the Big Bang. This is based on indirect evidence since astronomers have been unable to view the Epoch of Reionization directly.
Investigating this period was one of the main reasons for developing the James Webb Space Telescope (JWST), which can pierce the veil of the “dark ages” using its powerful infrared optics. However, observations provided by Webb revealed that far more galaxies existed in the early Universe than previously expected. According to a recent study, this suggests that reionization may have happened more rapidly and ended at least 350 million years earlier than our models predict. Once again, the ability to peer into the early Universe has produced tensions with prevailing cosmological theories.
The study was led by Julian B Muñoz, an assistant professor of astronomy at The University of Texas at Austin. He was joined by John Chisholm, also an assistant professor of astronomy at UT Austin; Jordan Mirocha, a NASA postdoctoral student at NASA’s Jet Propulsion Laboratory and the California Institute of Technology; Steven R Furlanetto, an associate professor of physics and astronomy at the University of California-Los Angeles, and Charlotte Mason, an associate professor with the Cosmic Dawn Center at the Niels Bohr Institute. The paper that describes their findings was published in the Monthly Notices of the Royal Astronomical Society.
The history of the Universe is outlined in this infographic. Credit: NASAAccording to current cosmological models, the Universe was filled with a hot, dense plasma of protons and electrons for the first 380,000 years after the Big Bang. Eventually, the Universe cooled enough for protons and electrons to come together and form neutral hydrogen. By ca. 100 million years after the Big Bang, the first stars (Population III) began to form, which were extremely massive and hot. These stars came together to create the first galaxies, and their ultraviolet light caused neutral hydrogen to once again split into protons and electrons (aka. became ionized).
Once most of the hydrogen in the Universe became ionized (ca. 1 billion years after the Big Bang), the Epoch of Reionization ended. At this point, the Universe was transparent, and light from this period is visible to optical telescopes today. As Chisholm indicated in a UT Austin news release, reionization also played a major role in how the Universe evolved. “The process heated and ionized gas in the Universe, which regulated how fast galaxies grew and evolved,” “These early stars established the overall structure of galaxies in the Universe.”
Before the deployment of the JWST, scientists relied on measurements of the Cosmic Microwave Background (CMB), the relic radiation from the Big Bang, and the Lyman-alpha Forest – the wavelength of light associated with hydrogen reionization. From this, astronomers have gained a sense of how much energy was available for reionization to occur (a “photon budget”) and how long it lasted. As Muñoz explained:
“[Reionization] is the last major change to happen. You went from neutral and cold and boring to ionized and hot. And this isn’t something that only happened to one or two galaxies. It happened to the whole Universe. It’s an accounting game. We know that all hydrogen was neutral before reionization. From there, you need enough extreme ultraviolet to split each atom. So, at the end of the day, you can do the math to figure out when reionization ended.”
Cosmic Microwave Background Radiation. Credit: NASAHowever, observations made with the JWST have revealed things that challenge accepted models. This includes a greater abundance of galaxies, which produce more UV radiation than previously anticipated. These findings suggest that reionization should have ended 550 to 650 million years after the Big Bang rather than 1 billion years. But if this were true, the CMB and Lyman-alpha Forest would look different. In short, there is a tension between these measurements and Webb‘s observations – as the team describes in their study, a “photon budget crisis.”
Much like the Hubble Tension, these findings suggest something could be missing from our current cosmological models. One possibility that the team explored is recombination, where ionized protons and electrons come together again to form neutral hydrogen. This is precisely what happened 380,000 years after the Big Bang, known as the “Era of Recombination.” If this process happened more often than our models suggest, it could increase the amount of extreme-UV light needed to reionize the Universe. As Muñoz explained, follow-up observations are needed to confirm this theory:
“We need more detailed and deeper observations of galaxies, and a better understanding of the recombination process. Resolving this tension on reionization is a key step to finally understanding this pivotal period. I am excited to see what the coming years hold.”
Further Reading: Phys.org, MNRAS
The post Webb Observations Shed New Light on Cosmic Reionization appeared first on Universe Today.
Journey to a Water World: NASA’s Europa Clipper Is Ready to Launch
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Preparations for Next Moonwalk Simulations Underway (and Underwater) A SpaceX Falcon Heavy rocket with the Europa Clipper spacecraft aboard is seen at Launch Complex 39A as preparations continue for the mission, Sunday, Oct. 13, at NASA’s Kennedy Space Center in Florida. NASA
Find details about the launch sequences for the orbiter, which is targeting an Oct. 14 liftoff on its mission to search for ingredients of life at Jupiter’s moon Europa.
In less than 24 hours, NASA’s Europa Clipper spacecraft is slated to launch from the agency’s Kennedy Space Center in Florida aboard a Falcon Heavy rocket. Its sights are set on Jupiter’s ice-encased moon Europa, which the spacecraft will fly by 49 times, coming as close as 16 miles (25 kilometers) from the surface as it searches for ingredients of life.
Launch is set for 12:06 p.m. EDT on Monday, Oct. 14, with additional opportunities through Nov 6. Each opportunity is instantaneous, meaning there is only one exact time per day when launch can occur. Plans to launch Europa Clipper on Oct. 10 were delayed due to impacts of Hurricane Milton.
Watch this video to learn more about NASA’s Europa Clipper, the first mission dedicated to studying Jupiter’s icy moon Europa. Evidence suggests that beneath Europa’s frozen surface is a global ocean of water, and scientists want to find out if there’s also the right chemistry and energy to sustain life. NASA/JPL-CaltechWith its massive solar arrays extended, Europa Clipper could span a basketball court (100 feet, or 30.5 meters, tip to tip). In fact, it’s the largest spacecraft NASA has ever built for a planetary mission. The journey to Jupiter is a long one — 1.8 billion miles (2.9 billion kilometers) — and rather than taking a straight path there, Europa Clipper will loop around Mars and then Earth, gaining speed as it swings past.
The spacecraft will begin orbiting Jupiter in April 2030, and in 2031 it will start making those 49 science-focused flybys of Europa while looping around the gas giant. The orbit is designed to maximize the science Europa Clipper can conduct and minimize exposure to Jupiter’s notoriously intense radiation.
But, of course, before any of that can happen, the spacecraft has to leave Earth behind. The orbiter’s solar arrays are folded and stowed for launch. Testing is complete on the spacecraft’s various systems and its payload of nine science instruments and a gravity science investigation. Loaded with over 6,060 pounds (2,750 kilograms) of the propellant that will get Europa Clipper to Jupiter, the spacecraft has been encapsulated in the protective nose cone, or payload fairing, atop a SpaceX Falcon Heavy rocket, which is poised for takeoff from historic Launch Complex 39A.
Launch SequencesThe Falcon Heavy has two stages and two side boosters. After the side boosters separate, the core stage will be expended into the Atlantic Ocean. Then the second stage of the rocket, which will help Europa Clipper escape Earth’s gravity, will fire its engine.
Technicians encapsulated NASA’s Europa Clipper spacecraft inside payload fairings on Wednesday, Oct. 2, at NASA’s Kennedy Space Center in Florida. The fairings will protect the spacecraft during launch as it begins its journey to explore Jupiter’s icy moon Europa. NASA/Ben Smegelsky
Once the rocket is out of Earth’s atmosphere, about 50 minutes after launch, the payload fairing will separate from its ride, split into two halves, and fall safely back to Earth, where it will be recovered and reused. The spacecraft will then separate from the upper stage about an hour after launch. Stable communication with the spacecraft is expected by about 19 minutes after separation from the rocket, but it could take somewhat longer.
About three hours after launch, Europa Clipper will deploy its pair of massive solar arrays, one at a time, and direct them at the Sun.
Mission controllers will then begin to reconfigure the spacecraft into its planned operating mode. The ensuing three months of initial checkout include a commissioning phase to confirm that all hardware and software is operating as expected.
While Europa Clipper is not a life-detection mission, it will tell us whether Europa is a promising place to pursue an answer to the fundamental question about our solar system and beyond: Are we alone?
Scientists suspect that the ingredients for life — water, chemistry, and energy — could exist at the moon Europa right now. Previous missions have found strong evidence of an ocean beneath the moon’s thick icy crust, potentially with twice as much liquid water as all of Earth’s oceans combined. Europa may be home to organic compounds, which are essential chemical building blocks for life. Europa Clipper will help scientists confirm whether organics are there, and also help them look for evidence of energy sources under the moon’s surface.
This artist’s concept depicts NASA’s Europa Clipper spacecraft in orbit at Jupiter as it passes over the gas giant’s icy moon Europa (lower right). Scheduled to arrive at Jupiter in April 2030, the mission will be the first to specifically target Europa for detailed science investigation. NASA/JPL-Caltech More About Europa Clipper
Europa Clipper’s three main science objectives are to determine the thickness of the moon’s icy shell and its interactions with the ocean below, to investigate its composition, and to characterize its geology. The mission’s detailed exploration of Europa will help scientists better understand the astrobiological potential for habitable worlds beyond our planet.
Managed by Caltech in Pasadena, California, NASA’s Jet Propulsion Laboratory leads the development of the Europa Clipper mission in partnership with the Johns Hopkins Applied Physics Laboratory (APL) for NASA’s Science Mission Directorate in Washington. APL designed the main spacecraft body in collaboration with JPL and NASA’s Goddard Space Flight Center in Greenbelt, Maryland; NASA’s Marshall Space Flight Center in Huntsville, Alabama; and NASA’s Langley Research Center in Hampton, Virginia. The Planetary Missions Program Office at Marshall executes program management of the Europa Clipper mission.
NASA’s Launch Services Program, based at Kennedy, manages the launch service for the Europa Clipper spacecraft, which will launch on a SpaceX Falcon Heavy rocket from Launch Complex 39A at Kennedy.
Find more information about Europa here:
8 Things to Know About Europa Clipper Europa Clipper Teachable Moment NASA’s Europa Clipper Gets Its Giant Solar Arrays Kids Can Explore Europa With NASA’s Space Place Get the Europa Clipper Press Kit News Media ContactsMeira Bernstein / Karen Fox
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NASA Welcomes Estonia as Newest Artemis Accords Signatory
While in Milan for international meetings, NASA Administrator Bill Nelson was among the witnesses as Estonia signed the Artemis Accords and became the 45th nation to join the United States and other signatories agreeing to the safe, transparent, and responsible exploration of the Moon, Mars, and beyond.
The signing ceremony took place ahead of Italy hosting the 75th International Astronautical Congress beginning Monday, Oct. 14, where government and space officials from signatory countries will discuss advancing implementation of the Artemis Accords, among other topics.
“We welcome Estonia’s signing of the Artemis Accords, which will open the door for more international collaboration,” said Nelson. “This decision also strengthens our family of nations, united by a common cause, and builds on our commitment to explore space for the benefit of humanity under the sound principles of the accords.”
Erkki Keldo, Estonia’s minister of economy and industry, signed the Artemis Accords. Rahima Kandahari, deputy assistant secretary for the U.S. State Department and Lisa Campbell, CSA (Canadian Space Agency) president, also participated in the event.
“Estonia is well known as the leading country in e-governance, and it is a great honor for us to enter a next level in space exploration, said Keldo. “We are more than interested to share our knowledge with the global space community to make future collaboration in space exploration a success for humankind. I am sure that joining the Artemis Accords will open attractive opportunities to Estonian enterprises too, to share their valuable knowledge and competences.”
In 2020, the United States and seven other nations were the first to sign the Artemis Accords, which identified an early set of principles promoting the beneficial use of space for humanity. The accords are grounded in the Outer Space Treaty and other agreements including the Registration Convention, the Rescue and Return Agreement, as well as best practices and norms of responsible behavior that NASA and its partners have supported, including the public release of scientific data.
The commitments of the Artemis Accords and efforts by the signatories to advance implementation of these principles support the safe and sustainable exploration of space. More countries are expected to sign in the coming weeks and months.
Learn more about the Artemis Accords at:
https://www.nasa.gov/artemis-accords
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SpaceX’s Mechazilla Catches a Starship Booster on First Try
For the first time ever, SpaceX has followed through on a Starship test launch by bringing back the Super Heavy booster for an on-target catch in the arms of its “Mechazilla” launch-tower cradle in Texas.
“This is a day for the engineering history books,” SpaceX launch commentator Kate Tice said.
Today’s successful catch marks a giant step toward using — and reusing — Starship for missions ranging from satellite deployments to NASA’s moon missions to migrations to Mars.
The amazing catch took place minutes after Super Heavy lofted Starship’s second stage, known as Ship, into space for the launch system’s fifth test flight. Liftoff occurred at 7:25 a.m. CT (1225 UTC) at SpaceX’s Starbase on the South Texas coast.
Although the primary objective of the test was to have Ship survive atmospheric re-entry and splash down intact in the Indian Ocean, the Super Heavy booster was the star of the show.
Super Heavy is not designed to set down on landing legs, as is the case for SpaceX’s workhorse Falcon 9 rocket. Instead, SpaceX went with a rocket-catching system at the pad, to maximize the booster’s payload capability and minimize the required turnaround time. Perfecting the Mechazilla catch is thus an essential part of SpaceX’s strategy for rapid rocket reusability.
The feat required pinpoint accuracy during the booster’s autonomous descent back through the atmosphere. It had to position itself precisely between Mechazilla’s adjustable arms, also known as “chopsticks,” and hover while the mechanism was engaged to secure the rocket.
If anything had gone wrong, Super Heavy would have been directed into the Gulf of Mexico rather than heading back to the launch pad after stage separation. Fortunately, everything went right.
“Even in this day and age, what we just saw, that looks like magic,” launch commentator Dan Huot said after the booster shut down its engines and came to rest, hanging on its launch tower.
Today’s test of Starship, which is the world’s most powerful rocket, proceeded according to plan from launch to splashdown. All 33 of the booster’s methane-fueled Raptor engines fired up for launch, and 13 of the Raptors powered the Super Heavy’s return to the pad.
The second stage continued at orbital speeds, on a suborbital test trajectory that rose to around 200 kilometers (124 miles). An hour after launch, Ship restarted three of its own Raptor engines and made an autonomous descent to its target splashdown point in the Indian Ocean.
During SpaceX’s fourth Starship test flight in June, the Ship sustained damage on the way down but survived for a splashdown. Ship’s thermal protection system was beefed up for today’s test.
Video views of the rocket’s flaps, sent down to Earth via SpaceX’s Starlink satellite network, showed heat building up on the control surfaces. Sparks flew off during the descent, but eventually the flaps cooled off — bringing rounds of applause from SpaceX employees who were watching the feed.
Minutes later, the rocket’s video stream showed Ship making a vertical dive into the water, and then a different stream from a nearby buoy showed Ship blazing as it bobbed on the surface.
“What an incredible end to Starship’s journey,” Tice said.
SpaceX founder Elon Musk hailed the results in a posting to his X social-media platform: “Ship landed precisely on target!” he wrote. “Second of the two objectives achieved.”
Data from the test flight will be used to fine-tune the launch system for future tests, using Starship hardware that has been stacked up at Starbase. Eventually, SpaceX aims to make the entire system fully reusable.
“We just caught a booster,” Huot said. “We’re going to start real soon looking at when we can catch a Ship.”
Starship could be used to accelerate the deployment of SpaceX’s Starlink satellites, and perhaps to provide point-to-point travel between terrestrial destinations as well.
NASA is depending on SpaceX to provide a modified version of Starship that would serve as the lander for crewed Artemis missions, beginning as soon as 2026. “As we prepare to go back to the moon under Artemis, continued testing will prepare us for the bold missions that lie ahead — including to the South Pole region of the moon and then on to Mars,” NASA Administrator Bill Nelson said in a congratulatory message posted to X.
SpaceX plans to use Starship for missions to Mars — starting with uncrewed trips that could get off the ground by as early as 2026, and continuing with crewed flights that could bring permanent residents to the Red Planet. Musk reportedly envisions building a city on Mars by the 2040s — and Starship is the key to his quest.
“Big step towards making life multiplanetary was made today,” Musk wrote on X.
The post SpaceX’s Mechazilla Catches a Starship Booster on First Try appeared first on Universe Today.
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A Serendipitous NASA Family Reunion
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Preparations for Next Moonwalk Simulations Underway (and Underwater) Yomayra Cruz-Diaz, technical project coordinator at NASA Langley with her son, Israel Martinez-Cruz. Martinez-Cruz is serving in the United States Marine Corps and is stationed at Marine Corps Air Station Miramar.NASA / Jessica Arreola
Lee esta historia en español aquí.
Growing up in Puerto Rico, Yomayra Cruz-Diaz didn’t imagine that one day she would work at NASA. Today, she serves as technical project coordinator at NASA’s Langley Research Center in Virginia, supporting its Aeronautics Research Directorate.
Cruz-Diaz’s position requires her to travel in support of public engagement events and recently she supported NASA’s presence at the Miramar Airshow in San Diego, California where the agency’s booth featured Spanish-language STEM materials.
Something, or rather, someone, made this event especially unique for Cruz-Diaz: Her son, Israel Martinez-Cruz, is currently serving in the United States Marine Corps and is stationed at Marine Corps Air Station Miramar.
In a stroke of serendipity, they were both working the same event for their respective employers. Living on opposite sides of the country, they hadn’t seen each other in person for nearly a year. With surprise and joy, they hugged.
Growing up in a Puerto Rican household, conversations about core values revolved around family, Martinez-Cruz said. He recalled seeing his mom work at NASA and feeling inspired by her work ethic. That level of commitment ran in the family.
“Israel and I would carpool,” she said. “He would drop me off at Langley and then he would go on his way to his aircraft mechanic school.”
Martinez-Cruz serves as an air traffic controller, work that Cruz-Diaz knew about but had never seen in person.
“He’s explained to me what his job entails but taking a tour of his job site gives me a whole new understanding,” she said after a tour of the air traffic control tower.
NASA is proud to celebrate National Hispanic Heritage Month, the annual observance honoring the wide and rich histories, cultures, and contributions of the Hispanic and Latino community. In the words of NASA Administrator Bill Nelson, “Adelante y hacia arriba,” or “Onward and upward!”
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Share Details Last Updated Oct 13, 2024 EditorJim BankeContactJessica Arreolajessica.arreola@nasa.govLocationNASA Langley Research Center Related TermsUna reunión familiar de la NASA por casualidad
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Preparations for Next Moonwalk Simulations Underway (and Underwater) Yomayra Cruz-Díaz, coordinadora de proyectos técnicos en NASA Langley con su hijo, Israel Martínez-Cruz. Martínez sirve en los Marines de los Estados Unidos y está destinado en la Estación Aérea de los Marines en Miramar.NASA / Jessica ArreolaRead this story in English here.
Al crecer en Puerto Rico, Yomayra Cruz-Díaz no imaginó que algún día trabajaría en la NASA. En la actualidad, se desempeña como coordinadora de proyectos técnicos en el Centro de Investigación Langley de la NASA en Virginia, apoyando a su Dirección de Investigación Aeronáutica.
El puesto de Cruz-Díaz le requiere viajar para apoyar eventos de participación pública y recientemente apoyó la presencia de la NASA en una exhibición aérea, en San Diego, California, donde el puesto de la agencia presentó materiales STEM en español.
Algo, o, mejor dicho, alguien, hizo que este evento fuera especialmente único para Cruz-Díaz: su hijo, Israel Martínez-Cruz, actualmente sirve en los Marines de los Estados Unidos y está destinado en la Estación Aérea del Cuerpo de Marines de Miramar.
En un golpe de suerte, ambos trabajaban en el mismo evento para sus respectivos empleadores. Al vivir en lados opuestos del país, no se habían visto en persona durante casi un año. Con sorpresa y alegría, se abrazaron.
Al crecer en un hogar puertorriqueño, las conversaciones sobre los valores fundamentales giraban en torno a la familia, dijo Martínez-Cruz. El recuerda haber visto a su madre trabajar en la NASA y sentirse inspirado por su ética de trabajo. Ese nivel de compromiso era hereditario.
“Israel y yo compartiríamos el viaje”, ella dijo. “El me dejaba en Langley y luego seguía el camino a su escuela de mecánica aeronáutica”.
Martínez-Cruz se desempeña como controlador de tránsito aéreo, trabajo que Cruz-Díaz conocía pero que nunca había visto en persona.
“Él me ha explicado lo que implica su trabajo, pero hacer un recorrido por su lugar de trabajo me da una comprensión completamente nueva,” ella dijo, después de un recorrido por la torre de control de tráfico aéreo.
La NASA se enorgullece de celebrar el Mes de la Herencia Hispana, una celebración anual que rinde homenaje a las amplias y ricas historias, culturas y contribuciones de la comunidad Hispana y Latina. En palabras del administrador de la NASA, Bill Nelson, “Adelante y hacia arriba.”
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Share Details Last Updated Oct 13, 2024 EditorJim BankeContactJessica Arreolajessica.arreola@nasa.govLocationNASA Langley Research Center Related TermsCan Life Exist on an Icy Moon? NASA’s Europa Clipper Aims to Find Out
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Preparations for Next Moonwalk Simulations Underway (and Underwater) The puzzling surface of Jupiter’s icy moon Europa looms large in this reprocessed color view made from images taken by NASA’s Galileo spacecraft in the late 1990s. The images were assembled into a realistic color view of the surface that approximates how Europa would appear to the human eye. NASA/JPL-Caltech/SETI Institute
With a spacecraft launching soon, the mission will try to answer the question of whether there are ingredients suitable for life in the ocean below Europa’s icy crust.
Deep down, in an ocean beneath its ice shell, Jupiter’s moon Europa might be temperate and nutrient-rich, an ideal environment for some form of life — what scientists would call “habitable.” NASA’s Europa Clipper mission aims to find out.
NASA now is targeting launch no earlier than Monday, Oct. 14, on a SpaceX Falcon Heavy rocket from Launch Complex 39A at NASA’s Kennedy Space Center in Florida.
Europa Clipper’s elongated, looping orbit around Jupiter will minimize the spacecraft’s exposure to intense radiation while allowing it to dive in for close passes by Europa. Using a formidable array of instruments for each of the mission’s 49 flybys, scientists will be able to “see” how thick the moon’s icy shell is and gain a deeper understanding of the vast ocean beneath. They’ll inventory material on the surface that might have come up from below, search for the fingerprints of organic compounds that form life’s building blocks, and sample any gases ejected from the moon for evidence of habitability.
Mission scientists will analyze the results, probing beneath the moon’s frozen shell for signs of a water world capable of supporting life.
This artist’s concept (not to scale) depicts what Europa’s internal structure could look like: an outer shell of ice, perhaps with plumes of material venting from beneath the surface; a deep, global layer of liquid water; and a rocky interior, potentially with hydrothermal vents on the seafloor.NASA/JPL-Caltech
“It’s important to us to paint a picture of what that alien ocean is like — the kind of chemistry or even biochemistry that could be happening there,” said Morgan Cable, an astrobiologist and member of the Europa Clipper science team at NASA’s Jet Propulsion Laboratory in Southern California, which manages the mission.
Ice InvestigationCentral to that work is hunting for the types of salts, ices, and organic material that make up the key ingredients of a habitable world. That’s where an imager called MISE (Mapping Imaging Spectrometer for Europa) comes in. Operating in the infrared, the spacecraft’s MISE divides reflected light into various wavelengths to identify the corresponding atoms and molecules.
The mission will also try to locate potential hot spots near Europa’s surface, where plumes could bring deep ocean material closer to the surface, using an instrument called E-THEMIS (Europa Thermal Emission Imaging System), which also operates in the infrared.
Europa Clipper Press KitCapturing sharply detailed pictures of Europa’s surface with both a narrow and a wide-image camera is the task of the EIS (Europa Imaging System). “The EIS imagers will give us incredibly high-resolution images to understand how Europa’s surface evolved and is continuing to change,” Cable said.
Gases and GrainsNASA’s Cassini mission spotted a giant plume of water vapor erupting from multiple jets near the south pole of Saturn’s ice-covered moon Enceladus. Europa may also emit misty plumes of water, pulled from its ocean or reservoirs in its shell. Europa Clipper’s instrument called Europa-UVS (Europa Ultraviolet Spectrograph) will search for plumes and can study any material that might be venting into space.
Whether or not Europa has plumes, the spacecraft carries two instruments to analyze the small amount of gas and dust particles ejected from the moon’s surface by impacts with micrometeorites and high-energy particles: MASPEX (MAss SPectrometer for Planetary EXploration/Europa) and SUDA (SUrface Dust Analyzer) will capture the tiny pieces of material ejected from the surface, turning them into charged particles to reveal their composition.
“The spacecraft will study gas and grains coming off Europa by sticking out its tongue and tasting those grains, breathing in those gases,” said Cable.
Inside and OutThe mission will look at Europa’s external and internal structure in various ways, too, because both have far-reaching implications for the moon’s habitability.
To gain insights into the ice shell’s thickness and the ocean’s existence, along with its depth and salinity, the mission will measure the moon’s induced magnetic field with the ECM (Europa Clipper Magnetometer) and combine that data with measurements of electrical currents from charged particles flowing around Europa — data provided by PIMS (Plasma Instrument for Magnetic Sounding).
In addition, scientists will look for details on everything from the presence of the ocean to the structure and topography of the ice using REASON (Radar for Europa Assessment and Sounding to Near-surface), which will peer up to 18 miles (29 kilometers) into the shell — itself a potentially habitable environment. Measuring the changes that Europa’s gravity causes in radio signals should help nail down ice thickness and ocean depth.
“Non-icy materials on the surface could get moved into deep interior pockets of briny water within the icy shell,” said Steve Vance, an astrobiologist and geophysicist who also is a member of the Europa Clipper science team at JPL. “Some might be large enough to be considered lakes, or at least ponds.”
Using the data gathered to inform extensive computer modeling of Europa’s interior structure also could reveal the ocean’s composition and allow estimates of its temperature profile, Vance said.
Whatever conditions are discovered, the findings will open a new chapter in the search for life beyond Earth. “It’s almost certain Europa Clipper will raise as many questions or more than it answers — a whole different class than the ones we’ve been thinking of for the last 25 years,” Vance said.
More About Europa ClipperEuropa Clipper’s three main science objectives are to determine the thickness of the moon’s icy shell and its interactions with the ocean below, to investigate its composition, and to characterize its geology. The mission’s detailed exploration of Europa will help scientists better understand the astrobiological potential for habitable worlds beyond our planet.
To learn more about the science instruments aboard Europa Clipper and the institutions provide them, visit:
https://europa.nasa.gov/spacecraft/instruments
Managed by Caltech in Pasadena, California, NASA’s Jet Propulsion Laboratory leads the development of the Europa Clipper mission in partnership with the Johns Hopkins Applied Physics Laboratory in Laurel, Maryland, for NASA’s Science Mission Directorate in Washington. APL designed the main spacecraft body in collaboration with JPL and NASA’s Goddard Space Flight Center in Greenbelt, Maryland, NASA’s Marshall Space Flight Center in Huntsville, Alabama, and NASA’s Langley Research Center in Hampton, Virginia. The Planetary Missions Program Office at Marshall executes program management of the Europa Clipper mission.
NASA’s Launch Services Program, based at Kennedy, manages the launch service for the Europa Clipper spacecraft, which will launch on a SpaceX Falcon Heavy rocket from Launch Complex 39A at Kennedy.
Find more information about Europa here:
8 Things to Know About Europa Clipper Europa Clipper Teachable Moment NASA’s Europa Clipper Gets Its Giant Solar Arrays Europa Clipper Launch Bingo News Media ContactsGretchen McCartney
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A Possible Exomoon Could be Volcanic, like Jupiter’s Moon Io
In 2012, astronomers detected a gas giant transiting in front of WASP-49A, a G-type star located about 635 light-years from Earth. The data obtained by the WASP survey indicated that this exoplanet (WASP-49 b) is a gas giant roughly the same size as Jupiter and 37% as massive. In 2017, WASP-49 b was found to have an extensive cloud of sodium, which was confounding to scientists. Further observations in 2019 using the Hubble Space Telescope detected the presence of other minerals, including magnesium and iron, which appeared to be magnetically bound to the gas giant.
WASP-49 b and its star are predominantly composed of hydrogen and helium, with only trace amounts of sodium – not enough to account for this cloud. In addition, there was no indication of how this sodium cloud was ejected into space. In our Solar System, gas emissions from Jupiter’s volcanic moon Io create a similar phenomenon. In a recent study, an international team led by scientists from NASA’s Jet Propulsion Laboratory found potential evidence of a rocky, volcanic moon orbiting WASP-49 b. While not yet confirmed, the presence of a volcanic exomoon around this gas giant could explain the presence of this sodium cloud.
The study was led by Apurva Oza, a former postdoctoral researcher at NASA’s Jet Propulsion Laboratory and now a staff scientist at Caltech. He was joined by colleagues from NASA JPL and researchers from the European Southern Observatory (ESO), the Indian Institute of Astrophysics, the Caltech/IPAC-NASA Exoplanet Science Institute, the Institute of Science and Technology Austria (ISTA), the Birla Institute of Technology and Science, and multiple universities. The paper that details their findings was recently published in The Astrophysical Letters.
Io is the most volcanic body in our Solar System, with hundreds of active volcanoes and extensive lava formations. This activity is the result of tidal interaction with Jupiter’s powerful gravitational field, which causes the interior of Io to flex and contract, creating dense lava flows that break through the surface. These volcanoes spew lava up to 300 km (186 mi) into space, along with sulfur dioxide, sodium, potassium, and other gases, creating a massive cloud around Jupiter up to 1,000 times the planet’s radius.
While the team’s observations did not detect any exomoons directly around WASP-49 b, a massive sodium cloud could constitute indirect evidence of a volcanic moon that is simply too small and dim to detect. For years, Oza has investigated how exomoons might be detected via their volcanic activity. To determine if this was the case around WASP-49 b, he and the team observed WASP-49 b over time using the Echelle SPectrograph for Rocky Exoplanets and Stable Spectroscopic Observations (ESPRESSO) on the ESO’s Very Large Telescope (VLT).
This proved quite challenging because of the distance involved and the way the star, planet, and cloud often overlap, making it very difficult to distinguish between them. Nevertheless, their observations revealed several pieces of evidence that suggest that a separate body is responsible for the sodium cloud. For example, their observations indicated that the cloud suddenly increased in size during two observations, suggesting it was being replenished. In fact, they estimate that the cloud is replenished at a rate of 100,000 kg (220,000 lbs) per second.
They also observed the cloud moving faster than the planet, suggesting it was generated by another body orbiting faster than the planet. “We think this is a really critical piece of evidence,” said Oza. “The cloud is moving in the opposite direction that physics tells us it should be going if it were part of the planet’s atmosphere.” Their observations also noted something interesting as WASP-49 b orbited its parent star every 2.8 days. During this time, the cloud appeared and disappeared behind the star or the planet irregularly.
This artist’s concept depicts a potential volcanic moon between the exoplanet WASP-49 b, left, and its parent star. Credit: NASA/JPL-CaltechTo address this, the team also used a computer model to simulate the presence of an exomoon and compare it to their observations. Their results showed that an exomoon with an orbital period of eight hours could explain the cloud’s motion and activity, including how it appeared to pass in front of the planet and will disappear and reappear at intervals. Another takeaway from this study was what it suggests about this possible exomoon’s future.
If WASP-49 b is similar in size to Earth’s Moon, Oza and his colleagues estimate that the tidal interaction with the planet’s gravity and its rapid mass loss will eventually cause it to disintegrate. “If there really is a moon there, it will have a very destructive ending,” said Oza. While these observations are intriguing, the team emphasizes that follow-up observations are needed to learn more about the cloud’s orbit and structure.
Further Reading: NASA, The Astrophysical Letters
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