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.
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.
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.
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, Institute for Advanced Study, 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.
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.
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?
