NASA's stuck astronauts are heading home now that a replacement crew has arrived at the International Space Station.

You might think Mercury, the planet closest to Earth on average, would be the easiest to reach. But you'd be wrong. Thanks to ...

NASA’s Suni Williams and Butch Wilmore — who gained international attention as their planned short stay in space stretched into a more than nine-month, politically fraught mission — are ...

Officials at Boeing no doubt had high hopes that the Starliner's maiden voyage with a crew in June would be a critical step in NASA approving the spacecraft for routine trips to orbit. Instead ...

The Geostationary Operational Environmental Satellites (GOES) captured a stunning view of Earth’s western hemisphere, with white clouds and snow, deep blue oceans, and green and brown continents. NASA ...

Two NASA astronauts have splashed down off the coast of Florida after spending more than nine months stuck in space. Butch Wilmore and Suni Williams waved as they left their capsule - nearly an ...

By Ali Watkins and Kenneth Chang Suni Williams and Butch Wilmore — two NASA astronauts who have remained in space for months longer than planned — could be back on Earth Tuesday evening.