How scientists find the big asteroids that can threaten Earth
Mashable VR
MAY 21, 2022
Specialized telescopes in Hawaii, Arizona, and beyond have spotted around 95 percent of the behemoths one kilometer (0.6 You need to know what's coming, when it's coming, and how hard it's going to hit," Eric Christensen, the director of the NEO-seeking Catalina Sky Survey in Arizona, told Mashable.
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