The story of oceans is the story of life.
Oceans define our home planet, covering the majority of Earth’s surface and driving the water cycle that dominates our land and atmosphere.
But more profound still, the story of our oceans envelops our home in a far larger context that reaches deep into the universe and places us in a rich family of ocean worlds that span our solar system and beyond.
Are there oceans on other worlds?
Yes! Earth is not alone.
When you look deeper into our solar system, there are worlds we suspect have oceans hidden beneath their icy surfaces.
NASA scientist Lucas Paganini is here to tell you more. Learn more about ocean worlds: