From asteroids that is. Remember the dual-threat asteroid-doom movies of 1999? You may have tried to forget Armageddon but Aerosmith's epic theme song "I Don't Want to Miss a Thing" sticks to your heart like bad cholesterol. And you can't forget Deep Impact because that was that other asteroid movie of 1998 and you're positive there were two.
Well it turns out that, as usual, the folks at NASA are watching everbody's backs. Slashdot reports that TopSpin rights that Flight International reports (god I love the blogosphere) "scientists at the Marshall Space Flight Center have developed designs for an array of asteroid interceptors wielding 1.2-megaton B83 nuclear warheads. The hypothetical mission for these designs is based on an Apophis-sized Earth impactor 2 to 5 years out."
What's an Apophis-sized Earth impactor? The scenario is based on the REAL Apophis asteroid, which on April 13 2029 "will pass closer to earth than geosynchronous satellites orbit." Wowzer!
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