A report by German aerospace engineers questions whether SpaceX's Starship could take humans to Mars before the decade is out ...

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

SpaceX CEO Elon Musk has backed a mission to Mars to investigate the remarkable 'square structure' (pictured) that was ...

As the Boeing Starliner Calypso approached the ISS, the capsule's thrusters malfunctioned and NASA ruled it too dangerous for ...

NASA has affirmed a plan it set last year to work with Elon Musk’s SpaceX in returning two astronauts from the International ...

The success of SpaceX and other private-sector space firms is throwing up hard questions about America's "great national ...

Trump tasks Elon Musk and SpaceX to rescue stranded NASA astronauts from ISS, criticizing Biden administration's inaction.

Williams, in a video conference with classmates at Needham High School on Monday, said that she has been trying to remember ...

NASA astronaut Sunita Williams, who is stuck in space for past eight months, disclosed that she has lost the capacity to execute a number of fundamental tasks.

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

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

Elon Musk claims it will be possible to travel to anywhere on Earth within an hour – including London to Hong Kong in 34 ...