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Wow! 2017 underwater photo contest winners
Winners of the 2017 Underwater Photographer of the Year (UPY) contest. How do you choose a favorite?
February 15, 2017
Arctic lights
Northern Norway's Lyngen Alps lit by the moon. Tommy Richardsen took this shot on February 7, 2017.
February 15, 2017
Slooh astronomers catch comet breakup
Will comet 73P/Schwassmann-Wachmann survive its March 16 sweep near the sun, or disintegrate into a trail of cosmic dust?
February 14, 2017
Round object crosses the moon
During Friday's penumbral eclipse of the moon, an observer in Puerto Rico captured images of a black disk moving across the moon's face.
February 13, 2017
Track in Antarctic ice
Galen Halverson of McGill University captured this photo from the deck of the research ship Nathaniel B. Palmer, in Antarctica's Weddell Sea.
February 13, 2017
Hints of a quiet, stray black hole
Theoretical studies predict 100 million to 1 billion black holes in our Milky Way galaxy. So far, astronomers have found about 60. A serendipitous discovery could lead to finding more.
February 13, 2017
Green Comet 45P: Photos and video
Green Comet 45P has been in our sky for months and passed closest on February 11, 2017. It's a faint one, but intrepid astronomers have captured some wonderful images!
February 12, 2017
Big Dipper over Bonneville Salt Flats
The stars of the Big Dipper reflected in the salt water of Utah's Bonneville Salt Flats. Photo by Marc Toso.
February 12, 2017
See it! February 10-11 lunar eclipse
A penumbral eclipse is subtle, but has a quiet beauty all its own. Thank you to all who submitted photos of the February 10-11, 2017 eclipse!
February 11, 2017
