If you get asteroids about a kilometer in size, those are large enough and carry enough energy into our system to disrupt transportation, communication, the food chains, and that can be a really bad day on Earth. — Neil deGrasse Tyson
Tags: #Earth, #Energy, #Chains, #NeildeGrasseTyson, #American, #Scientist
Neil deGrasse Tyson : American Scientist
Born: October 5, 1958
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