Discover new comets hiding within our solar system’s asteroid belt. Only a handful of comets residing within the asteroid belt have been discovered, so there is a lot left to learn about these objects and their relationship with the early solar system. Comet Hunters invites participants worldwide to comb through photos of asteroids to see if they have a tail and are actually comets.

(image by NASA, ESA, and D. Jewitt (UCLA), J. Agarwal (MPS), H. Weaver (JHUAPL), M. Mutchler (STScI), and S. Larson