Tag: solar radiation pressure

Points for Creativity: Student Suggests Paintballing Asteroids Until They Leave Us Alone

By Ashley P. Taylor | October 31, 2012 4:21 pm

asteroid Eros

To deflect an asteroid, paint it white. That’s the idea that made MIT graduate student Sung Wook Paek the winner of the 2012 Move An Asteroid Competition, a contest set up by the United Nations’ Space Generation Advisory Council that sought innovative ways to deflect asteroids. Paek’s plan is to hurl pellets of white paint at an asteroid in order to make it more reflective, meaning that more photons, or particles of light, would bounce off it, rather than being absorbed. Over time, the force of those photonic collisions, combined with the initial force of the paintballs, would be enough, Paek thinks, to move the asteroid off its path toward Earth.

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CATEGORIZED UNDER: Space
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