Saturday, November 5, 2011

Huge Asteroid Headed For Close Encounter With Earth

It is the cosmic equivalent of having a bullet go through your hair but miss your scalp. We know this one is going to miss, but it bears mentioning that we still do not have a viable defense plan to divert something similar if it was going to impact us.

http://ca.news.yahoo.com/huge-asteroid-headed-close-encounter-earth-185047555.html

"A huge asteroid will pass closer to Earth than the moon Tuesday, giving scientists a rare chance for study without having to go through the time and expense of launching a probe, officials said.

Earth's close encounter with Asteroid 2005 YU 55 will occur at 6:28 p.m. EST (2328 GMT) Tuesday, as the space rock sails about 201,000 miles from the planet.

"It is the first time since 1976 that an object of this size has passed this closely to the Earth. It gives us a great -- and rare -- chance to study a near-Earth object like this," astronomer Scott Fisher, a program director with the National Science Foundation, said Thursday during a Web chat with reporters.

The orbit and position of the asteroid, which is about 1,312 feet in diameter, is well known, added senior research scientist Don Yeomans, with NASA's Jet Propulsion Laboratory in Pasadena, California.

"There is no chance that this object will collide with the Earth or moon," Yeomans said.
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