NASA: Asteroid will miss but come close to Earth
"A newly discovered asteroid, named 2023 BU, is expected to make one of the closet approaches by a near-Earth object ever recorded." (Credit: NASA)
CAPE CANAVERAL, Fla. (AP) - An asteroid the size of a delivery truck will whip past Earth on Thursday night, one of the closest such encounters ever recorded.
NASA insists it will be a near miss with no chance of the asteroid hitting Earth.
NASA said Wednesday that this newly discovered asteroid will zoom 2,200 miles (3,600 kilometers) above the southern tip of South America. That's 10 times closer than the bevy of communication satellites circling overhead.
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The closest approach will occur at 7:27 p.m. EST (9:27 p.m. local.
NASA's DART spacecraft slams into target asteroid in defense test
The galactic slam occurred at a harmless asteroid 7 million miles (9.6 million kilometers) away, with the spacecraft named DART plowing into the space rock at 14,000 mph (22,500 kph). Scientists expected the impact to carve out a crater, hurl streams of rocks and dirt into space and, most importantly, alter the asteroid’s orbit.
Even if the space rock came a lot closer, scientists said most of it would burn up in the atmosphere, with some of the bigger pieces possibly falling as meteorites.
NASA's impact hazard assessment system, called Scout, quickly ruled out a strike, said its developer, Davide Farnocchia, an engineer at the agency's Jet Propulsion Laboratory in Pasadena, California.
"But despite the very few observations, it was nonetheless able to predict that the asteroid would make an extraordinarily close approach with Earth," Farnocchia said in a statement. "In fact, this is one of the closest approaches by a known near-Earth object ever recorded."
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Discovered Saturday, the asteroid known as 2023 BU is believed to be between 11 feet (3.5 meters) and 28 feet (8.5 meters) feet across. It was first spotted by the same amateur astronomer in Crimea, Gennady Borisov, who discovered an interstellar comet in 2019. Within a few days, dozens of observations were made by astronomers around the world, allowing them to refine the asteroid's orbit.
The asteroid's path drastically will be altered by Earth's gravity once it zips by. Instead of circling the sun every 359 days, it will move into an oval orbit lasting 425 days, according to NASA.
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