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-collisionsGenresDocumentárioImagensCartazFundoSem imagemÍconeFaixaTemporadasEspeciais3 episódiosTemporada 13 episódiosElenco e equipa
