Explore the origins of Earth's water in this 32-minute video from the History of the Earth channel. Delve into the early solar system, comets, and the Goldilocks zone to understand how our planet acquired its life-sustaining water. Examine the role of climate, early atmospheric conditions, and the water cycle in shaping Earth's unique environment. Learn about the Blue Marble perspective and how it changed our understanding of our planet. Discover the fascinating journey of water from space to Earth's surface, and gain insights into the factors that made our world habitable.