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Editors of EarthSky
Ghost light from dead galaxies
The Hubble Space Telescope has picked up the faint, ghostly glow of stars ejected from ancient galaxies that were gravitationally ripped apart several billion years ago.
October 31, 2014
Ebola is at least 16 million years old, says study
Ebola's first documented outbreak was in 1976. But the Ebola virus family has been around for 16 to 23 million years, says new research.
October 29, 2014
New 3D map of the cosmic web
A team of astronomers has created the first three-dimensional map of the adolescent universe, just 3 billion years after the Big Bang.
October 21, 2014
Milky Way strips nearby galaxies of star-forming hydrogen
Astronomers have discovered that our nearest galactic neighbors are devoid of star-forming gas, and that our Milky Way is to blame.
October 16, 2014
What are super-Earths made of?
Astronomers struggle to learn about super-Earths - bigger than our Earth, smaller than Neptune - the most common type of planet found by the Kepler spacecraft.
October 16, 2014
Earth’s last magnetic reversal took less than 100 years
A study demonstrates that Earth's last magnetic reversal - 786,000 years ago - happened in roughly the span of a human lifetime.
October 16, 2014
Spacecraft catches Mars atmosphere in act of escaping
Earth's atmosphere is leaking into space, too, but only very, very slowly. Meanwhile, Mars is thought to have lost much of its atmosphere already.
October 15, 2014
Crocodiles work as a team to hunt their prey
Crocs are able to conduct highly organized game drives. They might be second only to humans in their hunting prowess, says a researcher.
October 14, 2014
Mega flares from a mini star
You've heard of X flares from our sun? This mini star's biggest flare - seen in April, 2014 - was 10,000 times bigger than the biggest known solar X flare.
October 2, 2014
Curiosity rover drill pulls first taste from Mars mountain
The mission's emphasis has changed from drive, drive, drive to systematic layer-by-layer investigation. "Curiosity flew hundreds of millions of miles to do this."
September 29, 2014
