NASA - National Aeronautics and Space Administration

Spacewalking astronauts equipped the International Space Station with the first in a series of powerful new solar panels.

Barron, who commissioned as a Navy officer, was selected by NASA out of a pool of 18,000 people to join the 2017 astronaut...

A Chinese spaceship carrying a three-person crew has docked with China's new space station at the start of a three-month...

Santos, a Navy engineering duty officer with over 20 years of service, had had a distinguished career at NASA.

Lt. Col. Anne McClain is one of three currently serving active-duty Army astronauts.

With Arizona still counting, McSally, a retired Air Force colonel, trails Kelly, a former NASA astronaut, by 81,000 votes.

The Space Force created a unit dedicated solely to orbital warfare -- and it includes the secret X-37B space plane.

A NASA astronaut will transfer into the U.S. Space Force later this month while onboard the International Space Station.

IMAX documentary "Asteroid Hunters" uses spectacular effects to show what an asteroid strike would do to earth and how we're...

The two veterans may have a lot in common, but in a tight Senate race, they've been openly clashing with one another.