Science
Planetary defense experts use infamous asteroid Apophis to practice spotting dangerous space rocks – Space.com
Apophis definitely won’t hit Earth this month, but scientists are pretending it might.
Earth’s most recent brush with asteroid danger was eight years ago, when a space rock the size of a six-story building came seemingly out of nowhere, injuring 1,200 people when it exploded over Chelyabinsk
, Russia.
Now, scientists are using this month’s flyby of the infamous asteroid Apophis
to test their responses to potentially hazardous space rocks, honing the fine art of planetary defense. Planetary defense focuses on identifying asteroids and comets that hang out around Earth, mapping their…
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