"If you were a Martian coming to explore Earth's interior, it wouldn't matter if you put down in the middle of Kansas or the beaches of Oahu ... The beauty of this mission is happening below the surface."
It hasn't been easy for astronomers to peer into the cores of merging galaxies. Dust obscures the view. Now, new research has given astronomers a better look.
Researchers have identified a large meteorite impact crater hiding under the Greenland ice. The enormous crater - bigger than Paris - appears to be result of meteor strike just 12,000 years ago.
Satellite image of the area around Paradise, California, on the morning of November 8 shows the Camp Fire when it was only 4 hours old, yet had already burned halfway through the city.
The giant iceberg - about 3 times the size of Manhattan – broke off from Pine Island Glacier in late October. Scientists say the frequency of such events appears to be on the rise.
Activity on the sun’s surface creates the conditions known as space weather, that can, at its worst, damage Earth satellites and cause electrical blackouts.
This new Juno spacecraft image shows magnificent swirling clouds in Jupiter's dynamic atmosphere. The craft was about 4,400 miles (7,000 km) from the planet's cloud tops on October 29, over about 40 degrees north.
How natural can seawater be, in a large inland aquarium? Researchers at Georgia Aquarium in Atlanta were happy to learn that bacteria in their indoor exhibit mimicked those in the world's oceans.
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.