00439nam a2200085Ia 4500008004100000245002200041300022300063650001300286856005400299170517s9999    xx            000 0 und d  aCosmic Collisions  aRight now, massive meteors and asteroids are orbiting dangerously close to Earth. Some may even be poised to hit us in the foreseeable future! Where are they? What type of damage will they cause? What can we do stop...  xScience.  uhttp://topdocumentaryfilms.com/cosmic-collisions/