Artemis II Crew Walks Out for Practice Scenarios

From left to right, NASA astronauts Victor Glover, Artemis II pilot; Reid Wiseman, Artemis II commander;…

Do organics in Enceladus’ plumes really come from its ocean?

This artist’s concept shows plumes erupting onto the surface of Saturn’s moon Enceladus. In the background…

Life After Microgravity: Astronauts Reflect on Post-Flight Recovery 

Space changes you. It strengthens some muscles, weakens others, shifts fluids within your body, and realigns…

Meet Earth’s newest quasi-moon, recently discovered 2025 PN7

Newly discovered quasi-moon 2025 PN7 shares a similar orbit with Earth. But from Earth’s perspective, it…

NASA Sets Coverage for Northrop Grumman CRS-23, SpaceX Falcon 9 Launch

NASA, Northrop Grumman, and SpaceX are targeting no earlier than 6:11 p.m. EDT, Sunday, Sept. 14,…

Planetary Radio: Book Club Edition

Become A Member When you become a member, you join our mission to increase discoveries in…

A test bed in the search for life

The other two expeditions revisited these same sites in the dead of winter, when the lakes…

A cosmic perspective worth fighting for

NASA's science budget is under threat. Here's what that could mean to the human endeavor of…

NASA Astronaut Frank Rubio in Space Station Cupola

NASA astronaut Frank Rubio poses for a picture in the International Space Station’s cupola on Oct.…

The pale blue dot 35 years later

The photo was taken at the suggestion of Sagan, a Planetary Society co-founder who was a…