A Soviet spacecraft is expected to come hurtling back to Earth after being stuck in orbit for more than 50 years. The Kosmos ...

A Soviet-era spacecraft meant to land on Venus a half century ago is expected to plunge uncontrolled back to Earth within days.

Fram2's orbit flew Dragon on a north-to-south trajectory in low Earth orbit at an altitude of about 271 miles (437 kilometers ...

NASA astronaut Don Pettit lands safely with the Soyuz MS-26 crew after completing science experiments in orbit.

From cosmic radiation to crushing isolation, the journey to Mars presents a web of interlinked dangers. NASA’s Human Research ...

As they returned to the airlock, the Earth below started to put on a lightning show, and Ayers took note, mesmerized. A day ...

HERE’S a question: do you know what happens to pee in space? If yes, urine with a chance of nailing this quiz. If not, you ...

WASHINGTON (Reuters) -U.S. President Donald Trump's administration is seeking to cut key elements of NASA's moon program in ...