With all the space rocks zipping by Earth these days, we're pretty much cruising for an interplanetary bruising. But NASA's line on the situation is, to paraphrase administrator Mike Griffin: "Forget about that whole thing; we're going back to the Moon! Yay!" Fortunately, the B612 Foundation is slightly more serious about making sure our civilization isn't snuffed out by an asteroid or comet. Headed by former astronaut Rusty Schweickart, the non-profit is kicking $50,000 to a group of experts at Jet Propulsion Labs to study the "gravity tractor" method of deflecting doomsday objects that are inbound for momma Earth.
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