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Posts by
Editors of EarthSky
Ride along with a rocket to space
What a ride! Cameras mounted on the upper stage of a Soyuz rocket on April 3, 2014 looked earthward during a satellite launch.
April 7, 2014
Biggest galaxy cluster bigger than thought
El Gordo - the largest galaxy cluster in the universe - is about 3 million billion times more massive than our sun, roughly 43 percent more massive than earlier estimates.
April 4, 2014
Computer maps 21 distinct emotional expressions
... even seemingly contradictory ones, like "happily disgusted."
April 4, 2014
Hidden ocean discovered on Saturn’s moon Enceladus
A large ocean under Enceladus' icy surface supplies the water that's been seen spraying out of the "tiger stripes" on its surface, suggests new research.
April 3, 2014
Mercury has a long history of exploding volcanoes
Throughout extended periods of its history, the surface of planet Mercury crackled with volcanic explosions, a new analysis suggests.
April 3, 2014
Why do zebras have stripes? To keep bugs off, says study
Researchers say they've solved the riddle of why zebras have stripes: The stripes act like insect repellant, keeping away blood-sucking flies, say researchers.
April 3, 2014
New image: Two contrasting galaxies
A new image shows two galaxies, close to each other in space, but with very different histories - small spiral NGC 1317 and the large battle-scarred NGC 1316.
April 2, 2014
Mars opposition happens this month: It’s really easy to see
Earth and Mars are converging for a beautiful close encounter in April, an event astronomers call "the opposition of Mars."
April 2, 2014
Will the Yellowstone supervolcano erupt in your lifetime?
The supervolcano under Yellowstone Park is one of the biggest in the world. When will it erupt again? This NFS scientist doesn't think it'll happen anytime soon.
April 1, 2014
Are microbes responsible for Earth’s largest mass extinction?
Around 250 million years ago, 90 percent of Earth's life was wiped out. The cause, new research suggests, wasn't asteroids, or volcanoes, but methane-spewing microbes.
April 1, 2014
