'Planet Killer' Not in the Stars, Asteroid Research Indicates
'Planet Killer' Not in the Stars, Asteroid Research Indicates
NASA Urged to Find Ways to Deflect Smaller Threats
By Marc Kaufman
Washington Post Staff Writer
Friday, March 9, 2007; Page A03
The risk that an asteroid capable of wiping out humanity will crash into Earth is minuscule, new calculations suggest, but the chances of a smaller one destroying a city or setting off a catastrophic tsunami remain unclear and may be higher than previous estimates.
More at: http://www.washingtonpost.com/wp-dyn/content/article/2007/03/08/AR2007030802019.html