A look at how comets and meteors played a role in the formation of the solar system; their possible role in the extinction of the dinosaurs; and the theories that cometary dust could bring alien viruses to Earth.
Tags
History Channel, Louis C. Tarantion, Douglas J. Cohen, the universe, universe, documentary, free, watch, online, movie, film, video, top, doc, documentation, deadly comets and meteors, comet, deadly, meteor, dinosaur, solar, system
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