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LARGEST ASTEROID EVER TO FLY BY EARTH JAN 29th ASTEROID TU24 An asteroid that's likely as big as several football fields will fly past Earth next week. Astronomers said the space rock will be visible the night of Jan. 29 to amateur astronomers with modest-sized telescopes. Called 2007 TU24, the asteroid was discovered by NASA's Catalina Sky Survey on Oct. 11, 2007. It is estimated to be somewhere between 500 feet (150 meters) to 2,000 feet (610 meters) in diameter. The asteroid makes its closest approach to Earth, 334,000 miles (537,500 kilometers), at 3:33 a.m. Eastern time (12:33 a.m. Pacific time). For comparison, the moon is an average of 239,228 miles (385,000 kilometers) away. "This will be the closest approach by a known asteroid of this size or larger until 2027," said Don Yeomans, manager of the Near Earth Object Program Office at the Jet Propulsion Laboratory in Pasadena, Calif. However, that doesn't mean we won't hear about another flyby of this nature before then. With relatively small space rocks, like this one, astronomers sometimes don't know they're passing through until right before they do. There is no danger of the asteroid striking Earth in the foreseeable future, the scientists said.
But if an asteroid with this size were to hit Earth, the results could be regionally devastating. The impact itself would release about 1,500 megatons of energy, creating a crater about three miles (nearly five kilometers) wide and kicking up loads of debris, according to Yeomans. | |
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