Chinese astronaut conduct a spherical flame experiment during an orbit to ground space lecture using a match and a candle.

"I didn't look too good because I didn't feel too good," Pettit told reporters during a press conference from NASA's Johnson ...

The first spacewalk was conducted in 1965, by Russian cosmonaut Alexey Leonov. Nearly 20 years later, cosmonaut Svetlana ...

As they returned to the airlock, the Earth below started to put on a lightning show, and Ayers took note, mesmerized. A day ...

Veteran astronaut Don Pettit conducted hundreds of hours of research and captured over half a million photos during his ISS ...

Don Pettit, NASA's oldest active astronaut, addressed his eventful return to Earth. Shortly after the spacecraft touched down ...

NASA says the change is part of the agency's "continued effort to enable a robust commercial industry and supports policy ...

Chris Hadfield is glad his version of 'Space Oddity' "put a big smile" on David Bowie's face. The 65-year-old Canadian astronaut and spaceship commander performed his own "optimistic" rendition of ...

NASA's oldest full-time astronaut is back home and doing well a week after wrapping up a seven-month space mission.

How do you go to the bathroom in space? How that question led one local woman to the International Space Station. New episode ...

Former American Astronaut Michael Fossum visited the Rio Grande Valley Wednesday to talk about his experience and an upcoming ...