The five asteroids range from plane to bus-size, and one is expected to come to within half a million miles of Earth.
Earth is being visited by five asteroids this week, the biggest of which are about the size of a plane, although they will all likely zoom harmlessly past our planet, NASA said.
NASA flags any space object that comes within 120 million miles of Earth as a"near-Earth object" and classifies any large object within 4.65 million miles of our planet as"potentially hazardous." NASA tracks the locations and orbits of roughly 28,000 asteroids, following them with the Asteroid Terrestrial-impact Last Alert System , an array of four telescopes that can perform a scan of the entire night sky every 24 hours.
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