BERKELEY, Calif., Jan. 8 (UPI) -- U.S. astronomers say the discovery of six likely comets around distant stars suggests "exocomets" are just as common there as in our own solar system.
Researchers at the University of California, Berkeley, and Clarion University in Pennsylvania said massive disks of gas and dust surrounding all the distant stars -- a signature of exoplanets -- suggests comets are also likely inhabitants of these systems.