Dark matter is thought to outnumber regular matter by a factor of five to one – so why can’t we find the stuff? A new study ...

NASA is teaming up with India's space agency on a mission to study Earth's land and ice. This mission involves the NISAR satellite, which will scan all of the planet's surfaces twice every 12 days ...

The moon reached its peak brightness at 8:53 a.m. EST (1353 GMT) on Feb. 12, but local moonrise and moonset times will depend ...

Space can be a wondrous place, and we've got the pictures to prove it! Take a look at our favorite space pictures here, and if you're wondering what happened to today in space history don't miss ...

Cockpit warnings logged by air traffic controllers show a record of persistent collision risks near Reagan National Airport ...