What happened to NASA astronaut Scott Kelly after spending a year in space while twin brother Mark, also an astronaut, remained at home?

The astronauts' return will close out a dramatic marathon mission that began with a bungled test flight of Boeing's Starliner ...

Massachusetts native Suni Williams is among NASA’s two stuck astronauts headed back to Earth with SpaceX on Tuesday -- a ...

Bone and muscle deterioration, vision impairment — even changes in DNA. How does extended time in orbit impact the human body ...

"As soon as we can get it going, we would want to start having some type of presence on the moon sustainably," she told Fortune.

Another Japanese astronaut has flown into space. It is hoped that Japan will promote international cooperation in space by ...

SpaceX CEO Elon Musk announced that the Starship rocket will make its maiden Mars flight by the end of 2026, with human ...

Elon Musk announced that Starship will head to Mars in late 2026 with Tesla bot Optimus. A successful mission could lead to ...

Researchers worry an “extinction-level event” is coming for space science as the Trump administration looks to slash spending ...