NASA had to put spacewalks on hold and defer other duties after an unidentified astronaut experienced a serious medical issue in January.

The four Crew-12 astronauts will bring the International Space Station’s staff back to seven after a month of operating with three people on board.

If he makes the cut, Cameron Jones will become the seventh University of Illinois alum to earn the title of NASA astronaut. Here's a glance at the six others, ranked ...

On February 1, 2003, the space shuttle Columbia fell apart as it returned to Earth after spending more than two weeks in ...

Forty years on, the Challenger disaster remains a case study in what happens when organizations fail to allow for dissent and ...

The Space Systems Command said Wednesday GPS III-9 will provide the GPS constellation with an additional M-Code satellite that will significantly enhance positional accuracy and resistance to jamming, ...

A Houston-area Catholic school science teacher said the Challenger disaster remains one of the most defining moments of her early understanding of science and human exploration, shaping both her ...

As the nation commemorates the anniversary of the Challenger space shuttle disaster, here in the islands some members of the ...

Gloria McMillan was a finalist for NASA's Teacher in Space program alongside Christa McAuliffe, who died in the 1986 explosion.

Steve Hawley, who flew five Space Shuttle missions, and Krista Schaffer, a first-grade teacher at Christa McAuliffe Elementary in Lenexa reflect on the 40th anniversary of the Challenger disaster.

Wednesday marks the 40th anniversary of the Space Shuttle Challenger tragedy. The shuttle exploded 73 seconds after takeoff on Jan. 28, 1986. New Hampshire teacher Christa McAuliffe, 37, was one of ...

HAMMOND, Ind. (WLS) -- The worlds of science and education come together at the Challenger Learning Center in Hammond, Indiana, which honors the legacy of the "Challenger seven," while inspiring ...