Origin of Earth’s H2O –“Billions of Tons of Water-Packed Asteroids”

Earth's Oceans


“Our calculations indicate that, coinciding with the so-called ‘Heavy Bombardment’ produced by the gravitational destabilization of the main asteroid belt, billions of tons of carbonaceous chondrites reached Earth about 3.8 billion years ago. And they did it transporting in their fine matrices water and other volatile elements in form of hydrated minerals”, says Josep M. Trigo-Rodríguez at the Institute of Space Sciences.