Nearly All the Water on Earth is Extraterrestrial

Guest: Ewine Van Dishoeck, Professor of Astrophysics, Leiden University, Netherlands The search for life on other planets typically starts with a search for water. Liquid oceans are a distinguishing feature of this planet, where life thrives. We, humans, are mostly water ourselves. Astrochemist Ewine van Dishoek of Leiden University in the Netherlands has dedicated her career to figuring out where the water in our solar system – and in our bodies – initially came from and her conclusions will give you a whole new appreciation for that bottle you’re sipping water from right now.