Several massive asteroids are expected to whiz close to Earth in the coming weeks, including one nearly the size of the Empire State Building.
The asteroid is one of many so-called near-Earth objects passing in the coming weeks.
One of the closest approaches is Asteroid 2021 TJ15, which will pass the Earth at the same distance at the moon, or 238,854 miles away, on Saturday. "So that is the size of a small building. That's approaching a medium size. But that's 11 lunar distances approaching sequence, it cannot get any closer than 11.11 lunar distances," Chodas said.
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