Photo of the Day What does the new sharpest image of our Sun show? Instability. To be clear, a certain kind of interactive process called the Kelvin-Helmholtz instability (KHI). This instability can create waves and swirls when two streams flow past each other -- in this case variable streams of solar magnetic plasma. Long [...]
Explore This Section Science Science Activation Educators & Teens Get Hands-On… Overview Resources Opportunities Citizen Science Highlights About Science Activation 4 min read Educators & Teens Get Hands-On With TEMPO Data to Help Investigate Local Air Quality An educator explores NASA’s TEMPO mission data using the CosmicDS TEMPO-Lab viewer during a hands-on immersion [...]
2 Min Read NASA’s SkyFall Helicopters at Work (Artist’s Concept) PIA26760 Credits: NASA/JPL-Caltech Photojournal Navigation Science Photojournal NASA’s SkyFall Helicopters… Photojournal Home Photojournal Search Latest Content Galleries Feedback RSS About Downloads NASA’s SkyFall Helicopters at Work (Artist’s Concept) JPEG (3.25 MB) Description This artist’s concept depicts NASA’s three SkyFall Mars helicopters collecting data [...]
1 Min Read Antenna Testing for NASA’s SkyFall Mission PIA26759 Credits: NASA/JPL-Caltech Photojournal Navigation Science Photojournal Antenna Testing for NASA’s… Photojournal Home Photojournal Search Latest Content Galleries Feedback RSS About Downloads Antenna Testing for NASA’s SkyFall Mission JPEG (30.46 MB) Description SkyFall ground-penetrating radar engineer Maya Román connects a coaxial cable to a [...]
3 Min Read I Am Artemis Tom Percy As NASA sets its sights on long-term exploration of the Moon and Mars, the agency is increasing the cadence of its Artemis missions. Helping bring these plans to fruition is Tom Percy, manager of systems engineering and integration for NASA’s Human Landing System Program. Tom Percy, [...]
3 Min Read I Am Artemis: Tom Percy As NASA sets its sights on long-term exploration of the Moon and Mars, the agency is increasing the cadence of its Artemis missions. Helping bring these plans to fruition is Tom Percy, manager of systems engineering and integration for NASA’s Human Landing System Program. Tom Percy, [...]
NASA/Josh Valcarcel NASA astronaut Adam Fuhrmann (right, in yellow) prepares for a training flight aboard NASA’s WB-57 aircraft in this July 16, 2026, photo. These high-altitude flights train the crew to work in a tight environment and operate aircraft systems while in a pressure suit, preparing them for future missions to the International Space Station, [...]
APOD Science APOD APOD: 2026 August 6 – New… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. New [...]
Photo of the Day Don’t get spooked by Saturn’s ghostly spokes! Today we feature a nearly two-hour timelapse of Saturn and its rings looping forwards and backwards. A day on Saturn is only 10 hours long, so two hours of observation covers quite a bit of its rotation. If you look closely, a ghoulish [...]
4 min read NASA’s IXPE May Have Proven 90-Year-Old Theory A first of its kind measurement of a magnetar may have captured empty space behaving in a way physicists have predicted for 90 years, but never directly observed. The results published Wednesday in Nature. This artist’s concept depicts magnetar 1E 1547.0-5408, a rapidly rotating [...]
