There are many obstacles to overcome before humans can set foot on Mars, including problems surrounding launch mass and ...

Breathing New Air Chinese astronauts claim to have created rocket fuel on board the country's Tiangong space station using a ...

The nearly 5.5-hour feat set a record for astronaut Sunita Williams, who became the woman with the most time spent on ...

Astronauts Butch Wilmore and Suni Williams are conducting a spacewalk outside the International Space Station to remove ...

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

NASA's two stuck astronauts are taking their first spacewalk together, exiting the International Space Station almost eight ...

The founder of SpaceX said President Trump had asked his company to return two astronauts aboard the space station to Earth ...

Astronauts Suni Williams, Butch Wilmore, Nick Hague, and Don Pettit joined The Excerpt to share the perspective gained from ...

The award-winning novel 'Orbital' explores the inner thoughts of astronauts during a single day aboard the International ...

Where the astronauts sat in the Apollo Lunar Module may have profoundly impacted the way the experience of walking on the ...

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

NASA astronauts Sunita Williams and Barry Wilmore conducted a 5-hour spacewalk to fix a key communication issue on the ISS.