CNN CNN Newsroom November 28, 2013 20:15:00
Forces pulling the nucleus apart, and it doesn't loo good right now. >> how often does this thing happen where you have a comet like this passing by the sun? it doesn't seem close, but it is kind of close in scientific terms, right? >> well, brooke, yeah. sun-racer comets are fairly common. the spacecraft, the soho, sees one every few days or so. but comet ison is something special. it's the first time coming in from the vast cloud of comets outside the solar system. it's hot goinot going to be com back again, at least for millions and millionoffs years, or if it's dead, it will be gone foreve...