The race to Mars has quietly become the defining contest of twenty-first century spaceflight, pitting a state-backed Chinese ...

A Chinese space crew is stranded at the country’s Tiangong space station after tiny pieces of space debris were believed to have struck their return capsule, China’s spaceflight agency said Wednesday.

For astronaut safety and to bolster success of the human exploration to come later, NASA needs an end-to-end demonstration of ...

China is preparing to send a new kind of eye into orbit, a space observatory built to map the cosmos with a breadth and ...

U.S. plans to return Mars samples face delays as China advances its own mission. Scientists and policymakers debate costs, timelines, and the role of sample return in future Mars exploration ...