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 Pan-STARRS, or the Panoramic Survey Telescope and Rapid Response System, sits atop Hawaii's dormant volcano Haleakalā at some 10,000 feet. miles) wide or larger that would trigger planetary devastation.
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