Two NASA astronauts will step outside the International Space Station on Thursday to take part in U.S. Spacewalk 93, NASA's ...

The U.S. military has been responsible for rescuing astronauts during emergencies for years. NASA looks to change that.

Tech billionaire Jared Isaacman is one step closer to becoming NASA's next administrator. The U.S. Senate Committee on ...

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

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

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

Billionaire Jared Isaacman, who has been to space twice and is Trump's pick to head NASA, could be one step closer to ...

NASA officials ordered the removal of one of the massive rocket's RS-25 main engines after discovering a hydraulic leak on the engine's main oxidizer valve actuator, which controls the flow of ...

A veteran NASA astronaut just back from the International Space Station believes the orbiting facility can operate well past ...

Astronaut Don Pettit, who has been at the International Space Station since September, is set to land Saturday in Kazakhstan ...

NASA astronaut Don Pettit celebrates his 70th birthday with a spectacular return from the International Space Station after ...