NASA astronaut Don Pettit captured this stunning long-exposure view of Earth and stars from space at night from the International Space Station.

The Canadian-built Atacama Cosmology Telescope in the high Chilean desert mountains, which has just given up its final batch ...

The solar-powered Blue Ghost shut down on Sunday evening (March 16), shortly after the sun set over its lunar locale. The ...

CAPE CANAVERAL, Fla. — A private lunar lander has captured the first high-definition sunset pictures from the moon. Firefly ...

Private companies are now major players in space. How can they be held accountable if they damage the property of others or ...

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

The final results from the Atacama Cosmology Telescope offer the sharpest, most sensitive view of the early cosmos that ...