00435nam a2200085Ia 4500008004100000245001600041300023100057650001300288856004800301170517s9999    xx            000 0 und d  aSuper Comet  aScientists 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...  xScience.  uhttp://topdocumentaryfilms.com/super-comet/