Four astronauts strapped inside a capsule smaller than a large walk-in closet will spend roughly 10 days testing every system ...

Expedition 74 astronauts conducted science experiments, spacesuit maintenance, and spacecraft operations while the International Space Station received cargo deliveries and performed a reboost.

“We’re going to the moon.” Reid Wiseman, the commander of Artemis II, said the words emphatically, his way of opening a news briefing last September. He may have practiced the line, but he said it ...

When fire breaks out in the low-gravity, high-stakes conditions inside spacecraft or space stations, it behaves very differently than back here on Earth. So, as humans aim to set foot on Mars in the ...

A view from above of Atlantis' 60-foot-long payload bay. Atlantis' aft section as viewed from the side. The reflective insulation would normally be covered by one of the shuttle's two orbital ...

When fire breaks out in the low-gravity, high-stakes conditions inside spacecraft or space stations, it behaves very differently than back here on Earth.