Cosmos (2014)

S1E9 The Lost Worlds of Planet Earth

The Ship of the Imagination sets off on an extraordinary voyage across both space and time, exploring how the story of our planet is inscribed within its elements, waters, landmasses, and every form of life. In a significant breakthrough, American geologist Marie Tharp unveils the first accurate representation of the ocean floor, uncovering the existence of tiny organisms thriving in the depths of the sea.