Spacecraft observations reveal plasma waves moving from Saturn to its rings and its moon Enceladus. Researchers converted a recording of the plasma waves into an audible cosmic whoosh that you’ll enjoy.

Eleanor Imster

July 17, 2018

Asteroid 2017 YE5 turns out to be double

Asteroid 2017 YE5 swept by Earth in late June. Turns out, it’s a double asteroid, with both bodies almost identical in size and not touching - only the 4th such object ever detected.

Eleanor Imster

Eddie Irizarry

July 14, 2018

Geyser and Milky Way

Milky Way over Biscuit Basin, in Wyoming's Yellowstone National Park .

Eleanor Imster

July 14, 2018

July sunrise

Yesterday's sunrise over the Potomac River at Fort Hunt, Virginia.

Eleanor Imster

July 12, 2018

Heads up on July 2019 total solar eclipse

A 5-minute video from the European Southern Observatory on the 2019 eclipse in South America and the South Pacific. Eclipse map, and more.

Eleanor Imster

July 8, 2018

T. Rex couldn’t stick out its tongue

You've seen the picture: a fearsome T. Rex, baring its teeth, tongue stretching out of its mouth. But new research says there's a problem with this classic image. Dinosaurs couldn’t stick out their tongues.

Eleanor Imster

July 6, 2018

Chaotic clouds of Jupiter

Juno captured this image of swirling cloud belts and tumultuous vortices in Jupiter’s northern hemisphere during the spacecraft's 13th close flyby of Jupiter in May.

Eleanor Imster

July 6, 2018

Eleanor Imster

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.