Sunita “Suni” Williams and Barry “Butch” Wilmore, who have spent an unexpected eight months on the International Space ...

Here's what we know about options SpaceX might have to bring the Starliner astronauts home faster from the space station.

President Donald Trump and Elon Musk announced this week that SpaceX, the space exploration company founded by Musk, will be ...

A NASA astronaut revealed she has lost a bodily function since being stranded in space for eight months. Sunita Williams, and ...

NASA astronaut Sunita Williams, who is stuck in space for past eight months, disclosed that she has lost the capacity to ...

NASA astronaut Sunita Williams has completed over 200 days in space even since she reached the International Space Station on ...

The four American astronauts aboard the ISS, including the Boeing Starliner crew, spoke to USA TODAY in an exclusive interview Tuesday.

During a five-and-a-half hour spacewalk with her colleague Butch Wilmore, Sunita Williams surpassed former astronaut Peggy ...

YR4, which was recently spotted in the cosmos with a non-zero chance of hitting Earth in the coming years, may have caused ...

American astronaut Kalpana Chawla and six other astronauts when the Space Shuttle Columbia broke apart during re-entry into ...

Students had the chance to ask questions to astronaut Sunita Williams, one of the two astronauts currently stuck on the space ...

But how well do you really know our planetary neighbor? This quiz of 15 questions will test your knowledge of Mars' size, surface and history, as well as scientists' attempts to study it. Remember to ...