Scientists observing it say its origin is unclear, but their theories about how it formed suggest it could hint at the ...

An ailing astronaut is back on Earth. The crew of four returned Thursday, ending their space station mission more than a ...

Crew 11 is expected to splash down off the coast of Southern California at 3:41 a.m., closing out a 167-day stay in space.

Crew-11 disembarked the Dragon Endeavour at about 01:30 local time (09:30 GMT) after a nearly 11 hour journey back to Earth.

Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

Trump’s push to break that chokepoint is lifting rare-earths startups. Phoenix Tailings, a startup focused on recycling ...

"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if ...

An astronaut in need of medical care is on the way back to Earth. The ailing astronaut departed the International Space ...

A Pew Research poll shows partisan split over U.S. scientific leadership, with Democrats far more concerned about losing ...

However, maybe the US should be careful not to mistake its shopping list for a completed checkout. As China has demonstrated ...

The finding comes as the U.S. reverses rules meant to lower carbon pollution and walks away from international climate ...