An artist's concept of the asteroid Apophis (Image ESA)
Artist's concept of Apophis being hit with paintballs (Image: MIT)
Coating an asteroid with paint would increase its albedo and turn it into a solar sail (Image: MIT)
How do you deflect a civilization-destroying asteroid that's heading straight for Earth? Shoot paintballs at it. This may sound like an exercise in futility, but if the calculations of MIT graduate student Sung Wook Paek are correct, then the sport of running around in the woods shooting splotches of paint at people on the weekends could get a lot more respect.
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