Today, Portal 2 turns 15. Unlike most of us at that age, though, Valve's revered 2011 puzzler is completely confident in its ...
12h
A comet gets destroyed by the sun, data centers endanger the Potomac River, and more science news
MAPS was one of a family of comets aptly called Kreutz sungrazing comets, and according to Karl Battams, the principal ...
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