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Biggest Asteroid In Decades Coming
Asteroid 2005 YU55 To Narrowly Miss Earth
An asteroid a quarter-mile-wide will, astronomically speaking, narrowly miss Earth next week.
And while it is the closest an asteroid this size has come to the home planet since 1976, there's no need to call Bruce Willis … yet.
"There is no chance that this object will collide with the Earth or moon," Don Yeomans, the manager of NASA's Near Earth Object Program office, told Reuters.
But that doesn't mean the asteroid — named 2005 YU55 — won't be a threat to earth in the future.
Lance Benner, a research scientist at NASA's Jet Propulsion Laboratory, said in a video from NASA (available below) that scientists haven't been able to reliably compute the asteroid's path beyond a couple of hundred years from now.
At its closest point, the space rock will be about 201,700 miles (324,600 kilometers) away, which is 0.85 the distance between the moon and the Earth. NASA says that the asteroid will reach this point at 6:28 p.m. EST on Tuesday.
"In effect, it'll be moving straight at us from one direction, and then go whizzing by straight away from us in the other direction," Benner said.
An asteroid this size — which, according to Scientific American is larger than an aircraft carrier — would cause widespread damage if it were to hit Earth, however. The Associated Press spoke to Jay Melosh, a professor of Earth and Atmospheric Sciences at Purdue University, who said that the asteroid would create a four-mile wide crater 1,700 feet deep. It could cause 70-foot tsunami waves and shake the ground like a magnitude-7 earthquake.
The Huffington Post