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Posts by
Editors of EarthSky
The best-observed X-flare in history
NASA says the March 29, 2014 X-flare was the best-observed in history. This post contains beautiful images of that intense event on the surface of the sun.
May 11, 2014
This is cool! Watch a realistic virtual universe unfold
If astronomers had used an average desktop computer to run the new Illustris simulation, the calculations would have taken more than 2,000 years to complete.
May 8, 2014
Our sun now has a brother star, the first one ever found
These astronomers say there's a “small, but not zero” chance that brother stars to our sun could host planets that harbor life.
May 8, 2014
Nearest hypervelocity star found speeding through space at 1 million mph
Astronomers think hypervelocity stars happen when the galaxy's central back hole captures one of two stars in a binary system and slingshots the other out of the galaxy.
May 7, 2014
Are we ready for contact with extraterrestrial intelligence?
Do we need a greater or different kind of awareness of the cosmos in order to make contact with extraterrestrial civilizations?
May 6, 2014
U.S. Northeast already hit by climate change, says major report
New U.S. government report on climate change - first in five years - due out May 6. It outlines ongoing effects of a warming climate in the U.S. Northeast.
May 5, 2014
See Uranus from Saturn
Looking beyond the rings of Saturn, Uranus is that tiny blue dot in the upper left in this first ever image of the planet, taken by NASA's Cassini spacecraft.
May 1, 2014
Entire star cluster thrown out of its galaxy
Galaxy M87 has thrown an entire star cluster toward us at two million miles per hour. The cluster's fate, scientists say, is to drift through the void between the galaxies for all time.
May 1, 2014
View from space: Arkansas tornado track
A violent tornado touched down in Arkansas on April 27, 2014, killing as many as 15 people. In an April 28 satellite image, you can see the tornado's track. Compare it to a satellite image of the same area taken before the tornado.
April 30, 2014
Exoplanet’s day lasts only 8 hours
The length of an exoplanet's day has been measured for first time.
Planet Beta Pictoris b, 63 light-years away, is 16 times larger and 3,000 times more massive than the Earth, yet a day on the planet only lasts 8 hours.
April 30, 2014
