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

Astronauts on China's Tiangong station used artificial photosynthesis to turn CO₂ and water into oxygen and rocket fuel.

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

The astronauts on the Shenzhou-19 mission at Tiangong Space Station used semiconductor catalysts to convert carbon dioxide ...

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

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 astronauts Suni Williams and Butch Wilmore completed a spacewalk Thursday while awaiting their delayed return to Earth.

While Suni Williams and Butch Wilmore’s situation is unusual, their return trip will be pretty routine, as they were already ...

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

Starliner co-pilot Sunita Williams is now the world's most experienced female spacewalker, moving up to number four overall.

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