Mercury, the closest planet to the Sun, is a world of blazing heat, freezing nights, and endless mysteries. Recent photos ...

Live updates from SpaceX's Starlink 10-28 mission that launched a Falcon 9 rocket Tuesday, July 8, from Cape Canaveral Space ...

The historic space shuttle Discovery, one of NASA’s most famous orbiters, may soon be moving again—though not into space.

Letters to House and Senate appropriators follow the Trump administration’s proposed cuts to the office and elimination of ...

Astronomers have discovered thousands of exoplanets, some in the so-called habitable zone, but does that mean they could host ...