The newly released "skinny budget" would cancel the Gateway moon-orbiting space station and Mars sample return, among other ...

Halley’s comet swings near Earth every 75 years. But debris left by the comet leads to two major meteor showers every year ...

Experts warn that if a SpaceX mission accidentally alters an asteroid’s trajectory, it could trigger catastrophic collisions ...

A piece of a Soviet spacecraft launched in 1972 is expected to crash back down to Earth very soon, experts say. The part, ...