Asteroid towards Mars
NASA-funded astronomers are monitoring a Tunguska-sized asteroid that will pass within 30,000 miles of Mars on Jan. 30, 2008. Based on data currently available, the space rock has a 1-in-75 chance of actually hitting Mars and blasting a crater more than half-a-mile wide.
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Sorry, but the comment "Tunguska-sized asteroid" is a bit presumptuous, isn't it. I mean, unless you've heard something I haven't, there has been no evidence to suggest an asteroid caused that event. Why am I splitting hairs? Because I've just advanced a new model the describes the Tunguska event quite differently than by relying on an asteroid. Rather the new model suggests that it was a near Earth encounter with a small antimatter black hole (aka dark matter). The reason for the flattening of trees and no residual evidence is that the central hypothesis of the new model (the Dominium) is that matter and antimatter repel and under low energies are fundamentally immiscible with each other. Visit my blog at SciAm.com if your interested. It's caused quite a stir already (probably even got the website hacked to stop the debate--it was down from 12/20 to 12/24).
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