When the Juno spacecraft recently flew over the poles of Jupiter, researchers were astonished. This 5-minute video from NASA explores the latest discoveries.
Yellowstone's supervolcano won't erupt anytime soon. Neither will other similar systems around the world. A new study says we'll see many warning signs before a supervolcano erupts.
A SpaceX Dragon cargo spacecraft is set to depart the International Space Station (ISS) on Wednesday, May 2. NASA TV will provide live coverage of Dragon's departure starting at 10 a.m. EDT (14:00 UTC).
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.