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The near-Earth asteroid 2011 AG5 currently has an impact probability of 1 in 625 for Feb. 5, 2040, said Donald Yeomans, head of the Near-Earth Object Observations Program at NASA's Jet Propulsion Laboratory in Pasadena, Calif.
This impact probability isn't set in stone, however. So far, researchers have been able to watch the asteroid for just a short time -- the first nine months of 2011 -- and the numbers may change after further observation, Yeomans told SPACE.com. "Fortunately, this object will be observable from the ground in the 2013-2016 interval," Yeomans said.
In the very unlikely scenario that its impact probability does not significantly decrease after processing these additional observations, "there would be time to mount a deflection mission to alter its course before the 2023 keyhole," he added. Keyholes are small regions in space near Earth through which a passing NEO's orbit may be perturbed due to gravitational effects, possibly placing it onto a path that would impact Earth.
2011 AG5 may zip through such a keyhole on its close approach to Earth in February 2023, which will bring the asteroid within 0.02 astronomical units (1.86 million miles, or 2.99 million kilometers) of Earth. One astronomical unit is the average distance between Earth and sun, which is approximately 93 million miles (150 million km).
reply to post by SoymilkAlaska
edit2: may i go further as to imply the possibility of a conspiracy.... what if all those movies are subliminally preparing us for what is REALLY gunna happen, IF its true?
Originally posted by nofear39
learn to use the search engine ...............
Keyholes are small regions in space near Earth through which a passing NEO's orbit may be perturbed due to gravitational effects, possibly placing it onto a path that would impact Earth.