Preliminary estimates suggest that a 50-meter space rock called 2023 DW has a roughly one-in-600 chance of colliding with our planet in 23 years
A newly discovered asteroid may make a perilously close approach to Earth about 20 years from now, with a roughly 1-in-600 chance that the space rock will collide directly with our planet, officials with NASA's Planetary Defense Coordination Office tweeted.
First detected on Feb. 27, the asteroid dubbed 2023 DW is estimated to measure about 165 feet in diameter, or roughly the length of an Olympic-size swimming pool. The asteroid is expected to make a very close approach to Earth on Feb. 14, 2046; as of March 8, the European Space Agency's Near-Earth Object Coordination Centre predicts a 1-in-625 chance of a direct impact, although those odds are being recalculated daily.
A direct impact from such a rock wouldn't be cataclysmic like the roughly 7.5-mile-wide dinosaur-killing asteroid that crashed to Earth 66 million years ago. However, 2023 DW could still cause severe damage if it were to land close to a major city or heavily populated area. A meteor less than half the size of 2023 DW exploded over Chelyabinsk, Russia, in 2013, generating a shock wave that damaged thousands of buildings and injured roughly 1,500 people.
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