Comet LINEAR Disperses . ... WFPC2 , HST , NASA Explanation: What's happened to the nucleus of Comet LINEAR? ... Since then astronomers had been searching in vain to find any fragments left of the nucleus , and watching to see how fast the remaining debris fades. Just three days ago the Hubble Space Telescope was maneuvered to photograph the region and recovered some of the disintegrating fragments that used to compose Comet LINEAR 's nucleus. ... NASA Official: Jay Norris. ...