Cosmic CollisionsOverviewThe universe is almost entirely filled empty space, but that doesn't stop asteroids, comets, moons, planets, stars, galaxies and more from causing some serious calamity by smashing into one another.First airedJanuary 7, 2009URL slugcosmic-collisionsGenresDokumentarBilderPlakatBakgrunnIngen bildeIkonBannerSesongerSpesialer3 episoderSesong 13 episoderSkuespillere og stab
