Astronaut Samantha Cristoforetti the International Space Station's Poisk module preparing for a spacewalk.
Spacewalker Samantha Cristoforetti works outside the Nauka multipurpose laboratory module on the International Space Station.
Spacewalkers Samantha Cristoforetti and Oleg Artemyev work outside the Nauka multipurpose laboratory module.
This view of the International Space Station shows the SpaceX Dragon cargo ship docked to the Harmony module.
The sun's glint beams off the Atlantic Ocean just before it sets creating a yellow-orange hue in this photograph from…
The sun sets illuminating the cloud tops and Earth's atmosphere in this photograph from the International Space Station.
This Moon-mosaic is comprised of 1,231 images taken by the Lunar Reconnaissance Orbiter's (LRO) Narrow-Angle Camera (NAC) in the summer…
Since August 2012, Curiosity has been exploring 3-mile-high Mt. Sharp in Gale Crater. The rover has climbed more than 2,000…
Like distant galaxies amid clouds of interstellar dust, chunks of sea ice drift through graceful swirls of grease ice in…
NASA Administrator Bill Nelson speaks during a NASA briefing on the Artemis I Moon mission, Wednesday, Aug. 3, 2022, at…
