Our Universe Episode Rating Graph

Dive 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.

Shaping our entire universe, gravity has set the stage for life. For two king penguins, it steered them toward their soulmates.

A 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.

From the womb to a final moment of peace, witness the steady ticking of the universe's clock through the eyes of the chimpanzee.