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.
NASA
According to NASA: 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.
To learn more about the Yarkovsky effect: NASA OSIRIS-REx Mission sent a spacecraft on September 8, 2106, 7:00pm ET to the near-Earth Asteroid Bennu to observe how Bennu's shape, brightness, and surface features influence the strength of the Yarkovsky effect, helping scientists to better predict Bennu's orbit over time and pin down its long-term risk. The spacecraft will select the best spot on Bennu, collect samples, and return back to planet Earth by September 2023.
Three of Lin's artworks: Asteroid, sunFX, roboDroid were selected by NASA OSIRIS-REx Mission -- the first of its kind for NASA, both to travel to an Asteroid and accompanied by artworks encapsulated on a chip onboard the spacecraft.