Earth’s building blocks may have had far more water than previously thought
Meteorites suggest that H2O in the mantle comes from local origins, contrary to expectations
A study of enstatite chondrites (one shown), a type of meteorite similar to the material that formed Earth, suggests that Earth’s primordial building material had plenty of water, even though the planet is thought to have been born in an interplanetary desert.
L. Piani, Museum of Natural History in Paris