Our Universe

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1. 1Chasing StarlightA penetrating look at the sun as a vital source of energy and its impact on one cheetah's search for food in the sprawling plains of the Serengeti.44m
2. 2The Cosmic ClockFrom the womb to a final moment of peace, witness the steady ticking of the universe's clock through the eyes of the chimpanzee.44m
3. 3Turning SeasonsDive into the long year of the Alaskan brown bear through the Earth's seasonal cycle amid the frigid winter months and into the warmth of summer.45m
4. 4ElementalThe elements that constitute every living being were formed within the very first stars. Today, a green sea turtle searches the ocean for them.44m
5. 5Water WorldThe story of water's miraculous arrival onto our planet and its pivotal role in the survival — and amusement — of a herd of elephants.46m
6. 6Force of AttractionShaping our entire universe, gravity has set the stage for life. For two king penguins, it steered them toward their soulmates.42m