Mission control confirmed end of operations at 3:40 p.m. EDT (1934 UTC), when no signal was detected by NASA’s Deep Space Network station at Goldstone.
Over 99% of all the animal species that have ever lived are now extinct. Here are Earth's biggest extinctions, in under 5 minutes. New video from AsapSCIENCE.
Marine tetrapods, a group of animals including whales, dolphins, seals, and sea turtles, have moved from sea to land and back to the sea over the last 350 million years
After more than 10 years in space, the spacecraft will collide with Mercury, ending its mission, around late April. NASA telecon scheduled for April 16 at 1 p.m. EDT (17:00 UTC).
SpaceX Dragon capsule now on its way to International Space Station after Tuesday's successful liftoff via Falcon 9 rocket. Rendezvous set for Friday morning.
Eleanor Imster has helped write and edit EarthSky since 1995. She was an integral part of the award-winning EarthSky radio series almost since it began until it ended in 2013. She and her husband live in Tennessee, where they enjoy guitar playing and singing. They have 2 grown sons.