Heh
I'm watching Cosmos on The Science Chanel right now...
Sagan is talking about the Tanguska event in Siberia, in June, 1909, where a comet exploded over a large, wooded area. An entire forrest was flattened.
Comet Shoemaker - Levy smacked into Jupiter in summer 1994. Several large chunks
of the asteroid, which broke up upon contact with the giant planet's gravity left huge impact marks on Jupiter's surface that were visible for months!
An asteroid the size of a football field is currently headed for Mars.
It is only a matter of time before Earth suffers such an impact. It has happened before. It will happen again.
Fortunately, we have technology that can deflect such an asteroid.
Even a few inches difference in the cours of such can save Earth. I own the book. 
"Batman is only meaningful as an answer to a world which in its basics is chaotic and in the hands of the wrong people, where no justice can be found. I think it's very suitable to our perception of the world's condition today... Batman embodies the will to resist evil" -Frank Miller
"Conan, what's the meaning of life?"
"To crush your enemies, see them driven before you, and hear the lamentations of their women!"
-Conan the Barbarian
"Well, yeah."
-Jason E. Perkins
"If I had a dime for every time Pariah was right about something I'd owe twenty cents."
-Ultimate Jaburg53
"Fair enough. I defer to your expertise."
-Prometheus
Rack MisterJLA!
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