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An asteroid exploded over Russia - and we never saw it coming
The asteroid that exploded over Chelyabinsk injured around 1,500 people, damaged thousands of buildings, and exposed an uncomfortable truth: scientists completely missed it, even as they were ...
A 66-foot asteroid exploded over Chelyabinsk, Russia in 2013 with a flash brighter than the Sun, but the shockwave arrived ...
From high-speed battering rams to gravity tractors, the technology exists to protect the planet. The question is whether ...
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