00466nam a2200097Ia 4500 170517s9999 xx 000 0 und d Super Comet Scientists believe that an asteroid impacted the planet over 65 million years ago and effectively wiped out most of all life in its wake, including the entire dinosaur population. Is it only a matter of time before Earth is... Science. http://topdocumentaryfilms.com/super-comet/ 334381 334381 0 0 0 CL CL 2017-05-17 0 2017-05-17 00:00:00 2017-05-17 DF