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

NASA is monitoring a bus-sized asteroid as it makes its closest approach to Earth today, among a group of five space rocks ...

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.

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

The JWST has spotted the presence of carbon dioxide on HR 8799’s four known planets, part of a system astronomers use to ...

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 ...

Since those early steps, extravehicular activity has helped provide the solutions to many problems that astronauts face in ...

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 ...