A NASA instrument to provide unprecedented resolution of monitoring major air pollutants – down to four square miles – lifted off on its way to geostationary orbit at 12:30 a.m. EDT Friday.

The countdown for the NASA-ISRO NISAR satellite launch began at 2:10 pm Tuesday, set for 5:40 pm Wednesday. This mission, ...

During a close flyby of Europa, the Juno spacecraft was at an altitude of just 330 kilometers (220 miles) above the moon's surface. It caught some awesome images, too.

NASA’s Opportunity rover delivered the highest resolution images of Victoria Crater, pushing the boundaries of what we know about the Red Planet. Designed for just 90 Martian days, Opportunity ...