The asteroid is estimated to measure at roughly 1 kilometer, or more than 3,280 feet, across — a size that is more than twice the height of New York’s Empire State Building, which is 1,454 feet from base to antenna, and hundreds of feet more than Dubai’s Burj Khalifa, the world’s tallest building, which is 2,716.5 feet …
Read moreHow big is the asteroid in 2021?
The CNEOS estimates that the asteroid measures between 328 and 754 feet in diameter based on its observed magnitude. At the time of its close approach, the object will be traveling at around 34,700 miles per hour, which is about one-fifth as fast as a bolt of lightning.8 Ara 2021
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