Avsnitt 6

Comets appear from nowhere and then blaze across the sky in a magnificent display of cosmic fireworks before disappearing into the darkness. This film reveals our extraordinary relationship with comets, exploring how these icy dirt balls may actually hold the key to all life on Earth. Stunning CGI animation tears open the comet to reveal the secrets locked inside its nucleus . We travel back in time to witness the early earth and the storm of meteor impacts that could have brought the water to its oceans. While they may pose a threat to life on earth, Comets could also...