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astronomy Tag

Rosetta’s self-portrait at Mars. By European Space Agency, CC BY-SA 2.0, via Wikimedia Commons ." Selfies. Definitely notorious in the digital world. Who hasn't wrinkled up their nose in disgust at a friend’s shameless self-promotion or puckered up a duck face for the camera? Or maybe selfies...

Most of the things in our "Treasures" series are living organisms. I think this is partly because lots of living organisms are easy to identify with: they exist on a scale similar to ours and are easy to categorize as discrete entities. Phenomena are a little...

My friends and I all have vivid mental pictures of the Tunguska Event, probably because of Carl Sagan’s retelling of it in the original Cosmos series. Recently, another region of Russia—the Urals—was jolted awake by a similar, though smaller, event. This one caused more casualties than...