On Sept. 1, 1979, NASA’s robotic space probe Pioneer 11 became the first spacecraft to fly by Saturn. Pioneer 11 launched in 1973 on a mission to explore the asteroid…
As any amateur astronomer can tell you, Venus is famous for its yellow coloration in visible light. But, ask a professional planetary scientist and they will tell you the strangest…
APOD Science APOD APOD: 2026 August 31 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the cosmos! Each day…
Scientists and philosophers have argued over the nature of time since … well, since time immemorial. Is time real, or is it a convenient illusion? Why does time seem to…
Turkish Minister of Industry and Technology, Mehmet Fatih Kacır, 3rd from left, signs the Artemis Accords for the Republic of Türkiye as NASA Administrator Jared Isaacman, left, U.S. Deputy Assistant…
NASA’s Neil Gehrels Swift Observatory is back to studying the universe after spending months in a low-drag configuration while awaiting an orbital rescue mission that ultimately fell short. Mission controllers…
The SpaceX Falcon Heavy carrying NASA’s Roman Space Telescope crosses the face o the sun as it launches to space from Pad 39A of the Kennedy Space Center in Florida…
Every month, NASA Earth Observatory features a puzzling satellite image. The September 2026 puzzler appears above. Your ChallengeIdentify the location shown in this satellite image. Share what clues you see,…
Sure. It’s just another image of Phobos crossing the disk of the Sun, as seen from the surface of Mars. Like so much of the modern space era, these images,…
NASA’s next big space telescope has left Earth, but it’s not ready to start observing the heavens just yet. The Nancy Grace Roman Space Telescope launched yesterday (Aug. 30), riding…
