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Moon near star Aldebaran February 15
From some places worldwide, the moon will cover Aldebaran for up to an hour. The rest of us get an awesome view of this bright star right next to the moon.
February 15, 2016
Using light to understand rogue waves
They're not tsunamis, but they can be dangerous to ships. They're gigantic ocean waves, seeming to appear out of nowhere. New research may help predict them.
February 15, 2016
Black hole is sleeping giant
At the heart of galaxy NGC 4889 lurks one of the most massive black holes ever discovered. Astronomers think this giant has stopped feeding and is now resting.
February 13, 2016
Merging galaxies in Eridanus, via Hubble
Characterized as a peculiar galaxy, NGC 1487 is an elaborate cosmic whirl likely formed when several dwarf galaxies merged.
February 13, 2016
Sea ice and cloud streets in Sea of Okhotsk
Cloud streets are long rows of cumulus clouds, oriented parallel to the direction of the wind.
February 13, 2016
Moon receding tonight in 2 ways
Tonight's moon has passed its monthly perigee, or closest point. Plus, over the long course of time, the moon's mean distance from Earth is increasing.
February 13, 2016
Young moon in evening sky
After storms and high winds in England, France and Germany this week, a moment of serenity with a crescent moon.
February 11, 2016
Gravitational waves’ new window on cosmos
Why are scientists so excited about the first-ever detection of gravitational waves? Deborah Byrd reports on this episode of EarthSky News.
February 11, 2016
Gravitational waves detected!
We can now detect gravitational waves, says LIGO. Unanticipated discoveries, unexpected marvels, ahead.
February 11, 2016
