Every week, there seems to be another asteroid in the news that's about to fly dangerously close to Earth.But it never comes near enough to smash our planet to smithereens - or even quietly burn up in the atmosphere.This week it's asteroid 2023 BU, which will soar just 2,200 miles above Earth's surface on January 26, according to NASA.That's well within the range of artificial satellites, and about 236,655 miles closer to Earth than the Moon.
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