Have we found comets outside the solar system?RICHARD BIZLEY/SCIENCE PHOTO LIBRARYBy Jesse EmspakThe Kepler space telescope has seen thousands of exoplanets, and now we can perhaps add exocomets to the list. Potential evidence of comets has been found around two stars known as KIC 3542116 and KIC 11084727, both about 800 light years away. Kepler finds...