Water, Water Everywhere… but Why?

Water molecules found in meteorites from asteroids like Itokawa have matching isotopes to water molecules found on Earth but not water-rich meteorites.

IMAGE: Meteorites on their way to Earth and breaking through the atmosphere. CREDIT: Elements of this image furnished by NASA- earthmap for 3Drender; courtesy University of Glasgow

Meteorites are useful for answering all kinds of questions, including why is there so much water on Earth? One theory that has been gaining steam, so to…