The US carried out the Starfish Prime test by detonating a 1.4-megaton thermonuclear bomb about 400 kilometres above Earth.

SpaceX’s tenth Starship test flight may not have ended in total destruction, but it was far from smooth. An engine failed during ascent, the booster dropped from height and exploded on ocean impact, ...

The new space race is accelerating, but debris, failures, and crowded orbits are raising new risks around Earth.

On the morning of January 28, 1986, seven crew members were killed when the space shuttle Challenger broke apart a little over a minute after it launched. Those killed included five NASA astronauts, ...

(CNN) - Wednesday marks the 40th anniversary of the Challenger space shuttle explosion. It was a moment of collective grief on Jan. 28, 1986, when the space shuttle exploded during a live broadcast.