We humans have done a pretty good job of trashing the Earth all by ourselves, but we don't often stop to consider external threats - like asteroids. A 1908 asteroid explosion over Tunguska, Siberia ravaged 800 square miles,...
You may think that city-destroying asteroids are just the stuff of sci-fi novels, but new research reveals that the Earth is far more vulnerable to asteroid impacts than we ever though possible...
It may seem like a city-destroying asteroid is just the stuff of sci-fi novels, but new research reveals that the Earth is far more vulnerable to asteroid impacts than we ever though possible...
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