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By NASA
6 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASA’s SPHEREx mission is observing the entire sky in 102 infrared colors, or wavelengths of light not visible to the human eye. This image shows a section of sky in one wavelength (3.29 microns), revealing a cloud of dust made of a molecule similar to soot or smoke.NASA/JPL-Caltech This image from NASA’s SPHEREx shows the same region of space in a different infrared wavelength (0.98 microns), but the dust cloud is no longer visible. The molecules that compose the dust — polycyclic aromatic hydrocarbons — do not radiate light in this color.NASA/JPL-Caltech After weeks of preparation, the space observatory has begun its science mission, taking about 3,600 unique images per day to create a map of the cosmos like no other.
Launched on March 11, NASA’s SPHEREx space observatory has spent the last six weeks undergoing checkouts, calibrations, and other activities to ensure it is working as it should. Now it’s mapping the entire sky — not just a large part of it — to chart the positions of hundreds of millions of galaxies in 3D to answer some big questions about the universe. On May 1, the spacecraft began regular science operations, which consist of taking about 3,600 images per day for the next two years to provide new insights about the origins of the universe, galaxies, and the ingredients for life in the Milky Way.
This video shows SPHEREx’s field of view as it scans across one section of sky inside the Large Magellanic Cloud, with rainbow colors representing the infrared wavelengths the telescope’s detectors see. The view from one detector array moves from purple to green, followed by the second array’s view, which changes from yellow to red. The images are looped four times. NASA/JPL-Caltech “Thanks to the hard work of teams across NASA, industry, and academia that built this mission, SPHEREx is operating just as we’d expected and will produce maps of the full sky unlike any we’ve had before,” said Shawn Domagal-Goldman, acting director of the Astrophysics Division at NASA Headquarters in Washington. “This new observatory is adding to the suite of space-based astrophysics survey missions leading up to the launch of NASA’s Nancy Grace Roman Space Telescope. Together with these other missions, SPHEREx will play a key role in answering the big questions about the universe we tackle at NASA every day.”
From its perch in Earth orbit, SPHEREx peers into the darkness, pointing away from the planet and the Sun. The observatory will complete more than 11,000 orbits over its 25 months of planned survey operations, circling Earth about 14½ times a day. It orbits Earth from north to south, passing over the poles, and each day it takes images along one circular strip of the sky. As the days pass and the planet moves around the Sun, SPHEREx’s field of view shifts as well so that after six months, the observatory will have looked out into space in every direction.
When SPHEREx takes a picture of the sky, the light is sent to six detectors that each produces a unique image capturing different wavelengths of light. These groups of six images are called an exposure, and SPHEREx takes about 600 exposures per day. When it’s done with one exposure, the whole observatory shifts position — the mirrors and detectors don’t move as they do on some other telescopes. Rather than using thrusters, SPHEREx relies on a system of reaction wheels, which spin inside the spacecraft to control its orientation.
Hundreds of thousands of SPHEREx’s images will be digitally woven together to create four all-sky maps in two years. By mapping the entire sky, the mission will provide new insights about what happened in the first fraction of a second after the big bang. In that brief instant, an event called cosmic inflation caused the universe to expand a trillion-trillionfold.
“We’re going to study what happened on the smallest size scales in the universe’s earliest moments by looking at the modern universe on the largest scales,” said Jim Fanson, the mission’s project manager at NASA’s Jet Propulsion Laboratory in Southern California. “I think there’s a poetic arc to that.”
Cosmic inflation subtly influenced the distribution of matter in the universe, and clues about how such an event could happen are written into the positions of galaxies across the universe. When cosmic inflation began, the universe was smaller than the size of an atom, but the properties of that early universe were stretched out and influence what we see today. No other known event or process involves the amount of energy that would have been required to drive cosmic inflation, so studying it presents a unique opportunity to understand more deeply how our universe works.
“Some of us have been working toward this goal for 12 years,” said Jamie Bock, the mission’s principal investigator at Caltech and JPL. “The performance of the instrument is as good as we hoped. That means we’re going to be able to do all the amazing science we planned on and perhaps even get some unexpected discoveries.”
Color Field
The SPHEREx observatory won’t be the first to map the entire sky, but it will be the first to do so in so many colors. It observes 102 wavelengths, or colors, of infrared light, which are undetectable to the human eye. Through a technique called spectroscopy, the telescope separates the light into wavelengths — much like a prism creates a rainbow from sunlight — revealing all kinds of information about cosmic sources.
For example, spectroscopy can be harnessed to determine the distance to a faraway galaxy, information that can be used to turn a 2D map of those galaxies into a 3D one. The technique will also enable the mission to measure the collective glow from all the galaxies that ever existed and see how that glow has changed over cosmic time.
And spectroscopy can reveal the composition of objects. Using this capability, the mission is searching for water and other key ingredients for life in these systems in our galaxy. It’s thought that the water in Earth’s oceans originated as frozen water molecules attached to dust in the interstellar cloud where the Sun formed.
The SPHEREx mission will make over 9 million observations of interstellar clouds in the Milky Way, mapping these materials across the galaxy and helping scientists understand how different conditions can affect the chemistry that produced many of the compounds found on Earth today.
More About SPHEREx
The SPHEREx mission is managed by JPL for the agency’s Astrophysics Division within the Science Mission Directorate at NASA Headquarters. BAE Systems in Boulder, Colorado, built the telescope and the spacecraft bus. The science analysis of the SPHEREx data will be conducted by a team of scientists located at 10 institutions in the U.S., two in South Korea, and one in Taiwan. Caltech in Pasadena managed and integrated the instrument. The mission’s principal investigator is based at Caltech with a joint JPL appointment. Data will be processed and archived at IPAC at Caltech. The SPHEREx dataset will be publicly available at the NASA-IPAC Infrared Science Archive. Caltech manages JPL for NASA.
For more about SPHEREx, visit:
https://science.nasa.gov/mission/spherex/
News Media Contact
Calla Cofield
Jet Propulsion Laboratory, Pasadena, Calif.
626-808-2469
calla.e.cofield@jpl.nasa.gov
2025-063
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Last Updated May 01, 2025 Related Terms
SPHEREx (Spectro-Photometer for the History of the Universe and Ices Explorer) Astrophysics Exoplanets Galaxies Jet Propulsion Laboratory The Search for Life The Universe Explore More
4 min read NASA’s Chandra Diagnoses Cause of Fracture in Galactic “Bone”
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By NASA
X-ray: NASA/CXC/Northwestern Univ./F. Yusef-Zadeh et al; Radio: NRF/SARAO/MeerKat; Image Processing: NASA/CXC/SAO/N. Wolk Astronomers have discovered a likely explanation for a fracture in a huge cosmic “bone” in the Milky Way galaxy, using NASA’s Chandra X-ray Observatory and radio telescopes.
The bone appears to have been struck by a fast-moving, rapidly spinning neutron star, or pulsar. Neutron stars are the densest known stars and form from the collapse and explosion of massive stars. They often receive a powerful kick from these explosions, sending them away from the explosion’s location at high speeds.
Enormous structures resembling bones or snakes are found near the center of the galaxy. These elongated formations are seen in radio waves and are threaded by magnetic fields running parallel to them. The radio waves are caused by energized particles spiraling along the magnetic fields.
X-ray: NASA/CXC/Northwestern Univ./F. Yusef-Zadeh et al; Radio: NRF/SARAO/MeerKat; Image Processing: NASA/CXC/SAO/N. Wolk This new image shows one of these cosmic “bones” called G359.13142-0.20005 (G359.13 for short), with X-ray data from Chandra (colored blue) and radio data from the MeerKAT radio array in South Africa (colored gray). Researchers also refer to G359.13 as the Snake.
Examining this image closely reveals the presence of a break, or fracture, in the otherwise continuous length of G359.13 seen in the image. The combined X-ray and radio data provides clues to the cause of this fracture.
Astronomers have now discovered an X-ray and radio source at the location of the fracture, using the data from Chandra and MeerKAT and the National Science Foundation’s Very Large Array. A likely pulsar responsible for these radio and X-ray signals is labeled. A possible extra source of X-rays located near the pulsar may come from electrons and positrons (the anti-matter counterparts to electrons) that have been accelerated to high energies.
The researchers think the pulsar likely caused the fracture by smashing into G359.13 at a speed between one million and two million miles per hour. This collision distorted the magnetic field in the bone, causing the radio signal to also become warped.
At about 230 light-years long, G359.13 is one of the longest and brightest of these structures in the Milky Way. To put this into context, there are more than 800 stars within that distance from Earth. G359.13 is located about 26,000 light-years from Earth, near the center of the Milky Way.
A paper describing these results appeared in the May 2024 issue of the Monthly Notices of the Royal Astronomical Society and is available here. The authors of the study are Farhad Yusuf-Zadeh (Northwestern University), Jun-Hui Zhao (Center for Astrophysics | Harvard & Smithsonian), Rick Arendt (University of Maryland, Baltimore County), Mark Wardle (Macquarie University, Australia), Craig Heinke (University of Alberta), Marc Royster (College of the Sequoias, California), Cornelia Lang (University of Iowa), and Joseph Michail (Northwestern).
NASA’s Marshall Space Flight Center in Huntsville, Alabama, manages the Chandra program. The Smithsonian Astrophysical Observatory’s Chandra X-ray Center controls science operations from Cambridge, Massachusetts, and flight operations from Burlington, Massachusetts.
Learn More
Read more from NASA’s Chandra X-ray Observatory.
Learn more about the Chandra X-ray Observatory and its mission here:
https://www.nasa.gov/chandra
https://chandra.si.edu
Visual Description
This release features two composite images of a long, thin, cosmic structure. With the structure’s vertical orientation, seemingly fragile dimensions, and pale grey color against the blackness of space, the images resemble medical X-rays of a long, thin, bone. The main image shows the structure in its entirety. The inset image is an annotated close-up highlighting an apparent fracture in the bone-like structure.
The structure, called G359.13, or “The Snake”, is a Galactic Center Filament. These filament formations are threaded by parallel magnetic fields, and spiraling, energized particles. The particles cause radio waves, which can be detected by radio arrays, in this case by the MeerKAT array in South Africa.
In the first composite image, the largely straight filament stretches from the top to the bottom of the vertical frame. At each end of the grey filament is a hazy grey cloud. The only color in the image is neon blue, found in a few specks which dot the blackness surrounding the structure. The blue represents X-rays seen by NASA’s Chandra X-ray Observatory.
In the annotated close-up, one such speck appears to be interacting with the structure itself. This is a fast-moving, rapidly spinning neutron star, otherwise known as a pulsar. Astronomers believe that this pulsar has struck the filament halfway down its length, distorting the magnetic field and radio signal.
In both images, this distortion resembles a small break, or spur, in the bone-like filament.
News Media Contact
Megan Watzke
Chandra X-ray Center
Cambridge, Mass.
617-496-7998
mwatzke@cfa.harvard.edu
Lane Figueroa
Marshall Space Flight Center, Huntsville, Alabama
256-544-0034
lane.e.figueroa@nasa.gov
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By NASA
3 Min Read NASA Invests in Future STEM Workforce Through Space Grant Awards
NASA is awarding up to $870,000 annually to 52 institutions across the United States, the District of Columbia, and Puerto Rico over the next four years. The investments aim to create opportunities for the next generation of innovators by supporting workforce development, science, technology, engineering and math education, and aerospace collaboration nationwide.
The Space Grant College and Fellowship Program (Space Grant), established by Congress in 1989, is a workforce development initiative administered through NASA’s Office of STEM Engagement (OSTEM). The program’s mission is to produce a highly skilled workforce prepared to advance NASA’s mission and bolster the nation’s aerospace sector.
“The Space Grant program exemplifies NASA’s commitment to cultivating a new generation of STEM leaders,” said Torry Johnson, deputy associate administrator of the STEM Engagement Program at NASA Headquarters in Washington. “By partnering with institutions across the country, we ensure that students have the resources, mentorship, and experiences needed to thrive in the aerospace workforce.”
The following is a complete list of awardees:
University of Alaska, Fairbanks University of Alabama, Huntsville University of Arkansas, Little Rock University of Arizona University of California, San Diego University of Colorado, Boulder University of Hartford, Connecticut American University, Washington, DC University of Delaware University of Central Florida Georgia Institute of Technology University of Hawaii, Honolulu Iowa State University, Ames University of Idaho, Moscow University of Illinois, Urbana-Champaign Purdue University, Indiana Wichita State University, Kansas University of Kentucky, Lexington Louisiana State University and A&M College Massachusetts Institute of Technology Johns Hopkins University, Maryland Maine Space Grant Consortium University of Michigan, Ann Arbor University of Minnesota Missouri University of Science and Technology University of Mississippi Montana State University, Bozeman North Carolina State University University of North Dakota, Grand Forks University of Nebraska, Omaha University of New Hampshire, Durham Rutgers University, New Brunswick, New Jersey New Mexico State University Nevada System of Higher Education Cornell University, New York Ohio Aerospace Institute University of Oklahoma Oregon State University Pennsylvania State University University of Puerto Rico Brown University, Rhode Island College of Charleston, South Carolina South Dakota School of Mines & Technology Vanderbilt University, Tennessee University of Texas, Austin University of Utah, Salt Lake City Old Dominion University Research Foundation, Virginia University of Vermont, Burlington University of Washington, Seattle Carthage College, Wisconsin West Virginia University University of Wyoming Space Grant operates through state-based consortia, which include universities, university systems, associations, government agencies, industries, and informal education organizations engaged in aerospace activities. Each consortium’s lead institution coordinates efforts within its state, expanding opportunities for students and researchers while promoting collaboration with NASA and aerospace-related industries nationwide.
To learn more about NASA’s missions, visit: https://www.nasa.gov/
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By NASA
Skywatching Skywatching Home What’s Up What to See Tonight Meteor Showers Eclipses Moon Guide More Tips & Guides Skywatching FAQ Night Sky Network Eta Aquarids & Waiting for a Nova!
The first week of May brings the annual Eta Aquarid meteors, peaking on the 6th. And sometime in the next few months, astronomers predict a “new star” or nova explosion will become visible to the unaided eye.
Skywatching Highlights
All Month – Planet Visibility:
Venus: Appears very bright and low in the east in the hour before sunrise all month. Mars: Easy to find in the west in the first few hours of the night, all month long. Sets around midnight to 1 a.m. local time. Jupiter: Shines brightly in the west following sunset all month. Early in the month it sets about two hours after the Sun, but by late May it’s setting only an hour after sunset. Saturn: Begins the month next to Venus, low in the eastern sky before sunrise. Quickly separates from Saturn and rises higher in the sky each day before dawn. Daily Highlights
May 6 – Eta Aquarid Meteors – The peak of this annual shower is early on the morning of May 6th. The two or three nights before that are also decent opportunities to spy a few shooting stars. On the peak night this year, the Moon sets by around 3 a.m., leaving dark skies until dawn, for ideal viewing conditions. Seeing 10-20 meteors per hour is common for the Northern Hemisphere, while south of the equator, observers tend to see substantially more.
May 3 – Mars & Moon: The first quarter Moon appears right next to the Red Planet on the 3rd. Find them in the west during the first half of the night that evening.
All month – Venus & Saturn: Low in the eastern sky each morning you’ll find bright Venus paired with much fainter Saturn. They start the month close together, but Saturn pulls away and rises higher over the course of the month.
All month – Mars & Jupiter: The planets to look for on May evenings are Mars and Jupiter. They’re visible for a couple of hours after sunset in the western sky.
All month – Corona Borealis: Practice finding this constellation in the eastern part of the sky during the first half of the night, so you have a point of comparison when the T CrB nova appears there, likely in the next few months.
Transcript
What’s Up for May? Four bright planets, morning and night, a chance of meteor showers, and waiting for a nova.
May Planet Viewing
For planet watching this month, you’ll find Mars and Jupiter in the west following sunset. Mars sticks around for several hours after it gets dark out, but Jupiter is setting by 9:30 or 10 p.m., and getting lower in the sky each day. The first quarter Moon appears right next to the Red Planet on the 3rd. Find them in the west during the first half of the night that evening.
Sky chart showing Venus and Saturn with the crescent Moon in the predawn sky on May 23., 2025. NASA/JPL-Caltech In the morning sky, Venus and Saturn are the planets to look for in May. They begin the month appearing close together on the sky, and progressively pull farther apart as the month goes on. For several days in late May, early risers will enjoy a gathering of the Moon with Saturn and Venus in the eastern sky before dawn. Watch as the Moon passes the two planets while becoming an increasingly slimmer crescent. You’ll find the Moon hanging between Venus and Saturn on the 23rd.
Eta Aquarid Meteor Shower
Early May brings the annual Eta Aquarid meteor shower. These are meteors that originate from Comet Halley. Earth passes through the comet’s dust stream each May, and again in October. Eta Aquarids are fast moving, and a lot of them produce persistent dust trains that linger for seconds after the meteor’s initial streak.
This is one of the best annual showers in the Southern Hemisphere, but tends to be more subdued North of the Equator, where we typically see 10-20 meteors per hour. On the peak night this year, the Moon sets by around 3 a.m., leaving dark skies until dawn, for ideal viewing conditions. While the peak is early on the morning of May 6th, the two or three nights before that are also decent opportunities to spy a few shooting stars.
Waiting for a Nova
Sky chart showing constellation Corona Borealis with the location where nova “T CrB” is predicted to appear. The view depicts the constellation with the nova occurring, indicated by an arrow. NASA/JPL-Caltech Astronomers have been waiting expectantly for light from a distant explosion to reach us here on Earth. An event called a nova is anticipated to occur sometime in the coming months. Some 3,000 light years away is a binary star system called T Coronae Borealis, or “T CrB.” It consists of a red giant star with a smaller white dwarf star orbiting closely around it. Now the giant’s outer atmosphere is all puffed up, and the dwarf star is close enough that its gravity continually captures some of the giant’s hydrogen. About every 80 years, the white dwarf has accumulated so much of the other star’s hydrogen, that it ignites a thermonuclear explosion. And that’s the nova.
T Coronae Borealis is located in the constellation Corona Borealis, or the “Northern Crown,” and it’s normally far too faint to see with the unaided eye. But it’s predicted the nova will be as bright as the constellation’s brightest star, which is about as bright as the North Star, Polaris. You’ll find Corona Borealis right in between the two bright stars Arcturus and Vega, and you can use the Big Dipper’s handle to point you to the right part of the sky. Try having a look for it on clear, dark nights before the nova, so you’ll have a comparison when a new star suddenly becomes visible there.
A sky chart indicating how to locate the constellation Corona Borealis between the bright stars Arcturus and Vega. The Big Dipper’s handle points in the direction of Corona Borealis. NASA/JPL-Caltech Now, you may have heard about this months ago, as astronomers started keeping watch for the nova midway through 2024, but it hasn’t happened yet. Predicting exactly when novas or any sort of stellar outburst will happen is tricky, but excitement began growing when astronomers observed the star to dim suddenly, much as it did right before its previous nova in 1946. When the nova finally does occur, it won’t stay bright for long, likely flaring in peak brightness for only a few days. And since it’s not predicted again for another 80 years, you might just want to join the watch for this super rare, naked eye stellar explosion in the sky!
Here are the phases of the Moon for May.
The phases of the Moon for May 2025. NASA/JPL-Caltech You can stay up to date on all of NASA’s missions exploring the solar system and beyond at NASA Science.
I’m Preston Dyches from NASA’s Jet Propulsion Laboratory, and that’s What’s Up for this month.
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By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Gary Laier, center liaison for the Small Business Innovation Research/Small Business Technology Transfer (SBIR/STTR) program at NASA’s Armstrong Flight Research Center in Edwards, California, teaches students about aeronautics during Aero Fair at Tropico Middle School in Rosamond, California, on April 9, 2025.NASA/Genaro Vavuris When curiosity takes flight, learning knows no bounds. The impact of supporting STEM education extends far beyond the classroom, shaping the future of innovation and exploration. NASA Engages is the agency’s outreach website that connects NASA experts and resources with communities, educators, and students across the country. Led by NASA’s Office of STEM Engagement, the platform fosters collaboration between educators, organizations, and NASA employees to inspire the next generation.
Giovanna Camacho, Pathways systems engineering intern from NASA’s Armstrong Flight Research Center in Edwards, California, teaches students about aeronautics during Aero Fair at Tropico Middle School in Rosamond, California, on April 9, 2025.NASA/Genaro Vavuris Bringing NASA to the Classroom
NASA employees dedicate their time and expertise through NASA Engages, whether they’re passionate about robotics, flight research, or inspiring young minds to pursue STEM careers. One example of this is Aero Fair, a STEM program led by the California Office of STEM Engagement at NASA’s Armstrong Flight Research Center in Edwards, California. This initiative brings aeronautics directly to students, with NASA Armstrong professionals visiting classrooms – both in person and virtually – to engage students during three-day experiences that allow them to learn about aeronautics, meet NASA professionals, and explore potential career paths they might not have previously considered.
“When volunteers step up to help inspire and facilitate learning in the classroom, they are benefiting not only the students they interact with, but our future generation as well,” says Giovanna Camacho, Pathways systems engineering intern at NASA Armstrong, who volunteered at the event.
Chloe Day, a student at Tropico Middle School in Rosamond, California, said Aero Fair inspired her to consider a STEM career. “When NASA employees were talking about what they do and how they help our world today, it made me feel like I want to do it too.”
Educators can request an Aero Fair experience through NASA’s STEM Gateway. These programs “give students a chance to see themselves as real problem-solvers and innovators,” said Shauna Tinich, a Tropico Middle School teacher. “The most beneficial part of Aero Fair is the real-world connection to STEM. The connection to NASA makes it real and exciting for the students.”
Students from Tropico Middle School in Rosamond, California, build their own paper planes as part of a project during NASA Aero Fair on April 9, 2025.NASA/Genaro Vavuris A Program for Impact
The NASA Engages website matches outreach opportunities to employee skills and interests, while educators and community organizations can use the website to request public speakers, classroom visits, and educational support at events.
For many volunteers, the experience is just as inspiring as it is for the students. “Every time I volunteer, I walk out inspired,” Camacho said. “It motivates me to continue my pursuit of making a difference.”
Gary Laier, center liaison for the Small Business Innovation Research and Small Business Technology Transfer programs at NASA Armstrong, and Aero Fair volunteer, agreed: “It’s a rewarding experience for students, teachers, and NASA volunteers alike. I enjoy the opportunity to inspire youth and get them excited about their futures.”
By participating in outreach activities like Aero Fair, career panels, or events, NASA employees not only help ignite curiosity and provide knowledge to students and the community but also strengthen NASA’s connection to the communities it serves.
Gary Laier, center liaison for the Small Business Innovation Research/Small Business Technology Transfer (SBIR/STTR) program at NASA’s Armstrong Flight Research Center in Edwards, California, teaches students about aeronautics during Aero Fair at Tropico Middle School in Rosamond, California, on April 9, 2025.NASA/Genaro Vavuris Explore NASA STEM Opportunities
Educators, organizations, and community groups can connect with NASA in two ways. Through NASA Engages, external groups can request NASA support for their own events – such as inviting a NASA speaker or arranging classroom visits and providing outreach materials. Meanwhile, NASA STEM Gateway provides opportunities for individuals to participate in NASA-developed STEM events, internships, and programs like Aero Fair. To request NASA participation in an event or to learn more about NASA STEM opportunities, visit https://stemgateway.nasa.gov/nasaengages/s/.
Giovanna Camacho, Pathways systems engineering intern at NASA’s Armstrong Flight Research Center in Edwards, California, teaches students about aeronautics during Aero Fair at Tropico Middle School in Rosamond, California, on April 9, 2025.NASA/Genaro Vavuris Share
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Last Updated Apr 30, 2025 Related Terms
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