An ailing astronaut is back on Earth. The crew of four returned Thursday, ending their space station mission more than a month early in NASA's first medical evacuation.

There's no telling what will gain traction on social media, but one conspiracy theory has gained enough traction for NASA to ...

For weeks, social feeds have been flooded with breathless warnings that Earth will briefly “turn off” gravity for seven ...

It was quite a leap. Conspiracy theorists are being brought back down to Earth after NASA scientists debunked a wild claim ...

The space rock is hurtling through our cosmic backyard at a zippy 26,200 miles per hour, according to the space agency.

One U.S. and two Russian astronauts remain aboard the orbiting lab, just 1 1/2 months into an eight-month mission that began with a Soyuz rocket liftoff from Kazakhstan. NASA and SpaceX are working to ...

In a solar system far, far away NASA have discovered a planet which they think 'might be remarkably similar to Earth', though ...

A bus-size asteroid is racing through space on a trajectory that will bring it close to Earth, and NASA is watching it with ...

NASA scientists unearthed a new exoplanet, dubbed the 'cold Earth,' from retired Kepler telescope data. This Earth-sized world, HD 137010 b, orbits a distant star and, despite frigid temperatures, may ...

"Fund the fleet. Protect the teams. Tell the truth." The post Former NASA Employee Issues Desperate Plea to Head of Agency ...