NASA estimates that there are about 20,000 asteroids and comets in our solar system that are potential threats to Earth. They are larger than 460 feet in diameter — slightly smaller than the Superdome in New Orleans. So far, scientists know where about 6,000 of these objects are.
Wednesday, August 12, 2009
We Need More Bruce Willis'
Nasa's got 20,000 problems and a dead Mars robot ain't one. Humans can worry about peak oil, climate change, rogue nukes and all the like but those are all human-created problems. We could all be worried about single nuke getting loose and maybe we lose a city. What happens when a football stadium boulder is lost in space that could destroy the entire planet?
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that's what i got from bill bryson's book .... we're lucky as hell to even be here - and any moment something out of space could straight up put a dent in our day.
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