Water on Earth and Enstatite Chondrites

Lionel is a co-author on this interesting new paper in Science on the origin of Earth’s water. Enstatite chondrites were previously thought to be a building block of Earth because they match in various isotopes systems, most importantly oxygen. This work shows that the ECs can also bring plenty of water to Earth, and EC water has a deuterium abundance that matches Earth’s primordial water composition. Fascinating work that leads to lots more questions!