Cosmos

Season 1, Episode 9

Episode Title: The Lost Worlds of Planet Earth

Air Date: 2014-05-04

Overview:

The Ship of the Imagination embarks on a journey through space and time to grasp how the autobiography of the Earth is written in its atoms, its oceans, its continents and all living things. Later, American geologist Marie Tharp creates the first true map of Earth’s ocean floor, and discovers microscopic life that exists deep beneath the ocean.