Barnard's Star is a small, dim star of the type that astronomers call red dwarfs. Consequently, even though it is one of the ...

Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

The gas giants outside our solar system are not capable of hosting extraterrestrial life, but do offer clues in a lingering ...

A massive homecoming is in store for four astronauts making their descent down to Earth — and one of them is Sunita Williams ...

The HR 8799 system, 130 light years from Earth, is only 30 million years old -- just a baby compared to our solar system's 4.6 billion years.

Astronauts Suni Williams and Butch Wilmore, who have been stranded at the International Space Station for nine months, closed ...

Four small, newly discovered worlds are less than six light-years away from Earth, and their discovery reinforces a cautionary tale from planet hunting’s prehistory ...

Why SpaceX, Rocket Lab, Arianespace made Fast Company's list of the most innovative companies doing work in space.

While the historic space odyssey of 2 stranded astronauts is coming to an end, the reasons for their nine-month stay on board the ISS are still being fiercely debated here on Earth.

NASA astronauts, including Sunita Williams, have undocked from the ISS and are expected to splash off the Florida coast at ...

This image taken from NASA video shows the SpaceX capsule carrying NASA astronauts Suni Williams, Butch Wilmore and Nick ...