The odds of a 'city-killer' asteroid smashing into the Earth ... Earth in 1908 with a blast equivalent to detonating 50 million tons of TNT. Though estimates suggest a very small increase in ...
NASA has confirmed a 10-story asteroid will skim past Earth at 14,743 mph on Christmas Eve, a stark reminder of space hazards. Discovered on December 12 by NASA and ESA, the asteroid was labeled a ...
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