News Physics LIGO is on the lookout for these 8 sources of gravitational waves Astronomers still hope to catch a star going supernova and a bumpy neutron star, among others BANG, CRASH Physicists using the LIGO and Virgo observatories are catching all sorts of cosmic collisions, including of pairs of neutron stars (illustrated). But scientists hope to bag even more exotic quarry. NASA’s Goddard Space Flight Center/CI Lab Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Lisa Grossman May 6, 2019 at 1:14 pm Seekers of gravitational waves are on a cosmic scavenger hunt.