Watch Tim Peake’s spacewalk live

NASA astronaut Terry Virts captured this stunning image of the United Kingdom, Ireland and Scandinavia on a moonlit night beneath an amazing curtain of aurora.

The NICER telescope array aboard the International Space Station has made the most accurate measurements yet of a pulsar’s mass and size.

Three crewmen from Russia, the United States and Great Britain blasted off toward the International Space Station on Tuesday, rocketing into space from the Baikonur Cosmodrome in pursuit of the orbiting research lab.