Billions of years ago, our planet looked very different, including its coloring. New research suggests that early oceans were ...

Pale green dot The oceans were likely once a vibrant green color between 3.8 and 1.8 billion years ago, according to a study published in the journal Nature Ecology & Evolution.

Remnants of a liquid layer of magma near Earth's core, formed in the first few hundred million years of the planet's history, may still persist today as odd anomalies in the mantle.

Earth’s oceans used to be green, and they could turn purple next By Jay Kakade April 27, 2025 What I think purple oceans might look like, generated with AI ...

People have long wondered what life was first like on Earth, and if there is life in our solar system beyond our planet.