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Goddard TV Video Tape: G2015-063 -- The Yarkovsky Effect



Rotating asteroids have a tough time sticking to their orbits. Their surfaces heat up during the day and cool down at night, giving off radiation that can act as a sort of mini-thruster. This force, called the Yarkovsky effect, can cause rotating asteroids to drift widely over time, making it hard for scientists to predict their long-term risk to Earth.    Watch this video on the  NASAexplorer YouTube channel .     For complete transcript, click  here . How Sunlight Pushes Asteroids