The most detailed view of Pluto’s terrain you’ll see for a very long time, taken by the New Horizons spacecraft as it flew past Pluto on July 14, 2015.
Energy from our young sun – 4 billion years ago - helped create molecules in Earth's atmosphere that allowed it to warm up enough to incubate life, says study.
New evidence from Australia of an enormous asteroid that struck Earth 3.4 billion years ago, triggering earthquakes and tsunamis and causing cliffs to crumble.
First global topographic map of Mercury shows the whole surface of our solar system's innermost planet. MESSENGER mission scientists used 100,000 images to create it.
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.