Confined inside a research station 22 feet (7 meters) underwater, Analog Astronaut Commander Dr. Musilova and her crew performed research and maintenance activities like future astronauts on Mars.

Analog Astronaut Commander and Aquanaut Michaela Musilova led underwater simulated “spacewalks” in low visibility to test astronaut safety and communication protocols during simulated space missions.

NASA astronaut Luke Delaney conducts botany experiments on the ISS.

“I think motherhood eventually has to become a bigger part of the conversation if we’re serious when we talk about humanity having a sustained presence beyond Earth.”

NASA astronaut Frank Culbertson saw the immediate aftermath of the 9/11 attacks from the International Space Station in 2001. His view and his reaction were captured on video.

NASA astronaut Jonny Kim is leaving the space agency to continue his military career. Kim, who’s also a medical doctor, completed one spaceflight during his NASA career.

ESA astronaut Sophie Adenot and NASA astronaut Anil Menon complete a spacewalk on Aug. 18, 2026.

On this day in space! Aug. 22, 1963: U.S. Air Force Captain Joe Walker flew an X-15 rocket plane higher than any pilot had ever flown before.

A pen-sized apparatus called a “laundry gun” could sterilize astronauts’ clothes in space.

Spaceflight can do strange things to the human body — including making it harder for astronauts to poop.