Stories about: gravitational keyhole

'Killer' Asteroid Estimate Corrections Dismissed by NASA A few days ago, 13 year-old German Nico Marquardt seemed to have embarrassed all NASA scientists when he announced that the odds of asteroid Apophis hitting the Earth in 2036 have been greatly underestimated. The funny thing is that many sources rushed to state that NASA and the ESA confirmed the schoolboy's res...	18 April 2008 06:43 GMT

German 13 Year-Old Corrects NASA Estimates on 'Killer' Asteroid 2004 MN4, or most popularly known as asteroid 99942 Apophis, is a near Earth asteroid discovered in December 2004. Apophis measures about 400 meters in diameter and upon its discovery, it was given a chance of 2.7 percent that it will hit our planet in 2029. On 19 October 2006, NASA estimated that Apophis had a chang...	16 April 2008 06:36 GMT

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'Killer' Asteroid Estimate Corrections Dismissed by NASA