Space Exploration

There are six people living on the Chinese space station Tiangong at the moment, and the plan to bring three of them back is in progress

In a new book, NASA astrobiologist Caleb Scharf says the fate of life on Earth may hinge on leaving our planet behind

Three Chinese astronauts will likely return safely to Earth after a reported space-junk strike. But the incident highlights the growing risk of orbital debris

Reflect Orbital’s plan to deliver “sunlight on demand” using thousands of giant orbital mirrors is just the latest in a growing list of disruptive commercial activities in space

Ahead of Jared Isaacman’s renomination for the position of NASA’s administrator, a dispute between him and its acting chief Sean Duffy spilled into the open, with potentially profound consequences for the U.S. space agency

Humans have been in space onboard the ISS continuously for 25 years. As the station nears its end, new commercial habitats are lining up to take its place

These rare samples, uncovered on the moon by China’s Chang’e 6 mission, might help to reveal secrets of how the solar system evolved

Former NASA officials warn that the U.S. looks poised to lose its self-declared race to beat China to the moon

The U.S. wants to remain a superpower in space. It can’t without supporting NASA

With the successful 11th test flight of its Starship megarocket, SpaceX is on the cusp of a new era in spaceflight

Astronaut-turned-author Chris Hadfield discusses his new thriller Final Orbit, which weaves real cold war history, space race geopolitics and firsthand experience into a gripping work of fiction.

A fresh analysis of old data has found rich organic chemistry within the hidden ocean of Saturn’s moon Enceladus