Forty years ago, Americans were shocked when the space shuttle Challenger exploded 73 seconds after it launched on a chilly ...

Seven American spacefarers were killed in a tragic event 40 years ago today that has become widely known as the Challenger ...

On Jan. 28, 1986, America witnessed a tragedy: the explosion of Space Shuttle Challenger in the blue skies over Florida. The ...

TODAY marks four decades since the Challenger space shuttle exploded just 73 seconds into its flight. Millions watched the ...

NASA Administrator Jared Isaacman appeared to suggest that space shuttle Discovery may not be relocated to Houston's Johnson ...

NASA is getting ready to launch its massive, fully expendable rocket for the first crewed flight to the Moon since Apollo.

Forty years after the Challenger disaster, NPR explores the engineers' last-minute efforts to stop the launch, their decades ...