Wonders of the Universe episode 4

Wonders of the Universe episode 4: In the last episode of Professor Brian Cox's epic journey across the universe, he travels from the fossils of the Burgess Shale to the sands of the oldest desert in the world to show how light holds the key to our understanding of the whole universe, including our own deepest origins.
https://hdclump.com/wonders-of-the-universe-episode-3/