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Where Did The Moon's Water Come From? Wash U Researchers Search For Answers

Mare Nectaris is a small lunar sea located on the near side of the moon.
Paul Stewart | Flickr
Mare Nectaris is a small lunar sea located on the near side of the moon.

The Earth’s moon contains ice, but scientists don’t know much about where the water came from. As the moon formed, water could have come from Earth’s volcanoes in the form of gas. It could have been brought there by comets and meteorites. Or, it may have traveled to the lunar surface via solar wind that interacted with minerals on the moon to create water. 

Researchers at Washington University in St. Louis are teaming up to find some answers. The team has been chosen as one of NASA’s eight new Solar System Exploration Research Virtual Institutes. They are part of a five-year cooperative agreement valued at more than $7 million.

On Wednesday’s St. Louis on the Air, Sarah Fenske talked with Jeff Gillis-Davis, an associate research faculty in the physics department at Wash U, about how they will study the moon’s water and how lunar water may be utilized in future space expeditions.

Listen to their conversation:

St. Louis on the Air” brings you the stories of St. Louis and the people who live, work and create in our region. The show is hosted by Sarah Fenske and produced by Alex Heuer, Emily Woodbury, Evie Hemphill, Lara Hamdan and Tonina Saputo. The engineer is Aaron Doerr, and production assistance is provided by Charlie McDonald.

Send questions and comments about this story to feedback@stlpublicradio.org.

Copyright 2021 St. Louis Public Radio. To see more, visit St. Louis Public Radio.

Emily Woodbury joined the St. Louis on the Air team in July 2019. Prior to that, she worked at Iowa Public Radio as a producer for two daily, statewide talk programs. She is a graduate of the University of Iowa with a degree in journalism and a minor in political science. She got her start in news radio by working at her college radio station as a news director. Emily enjoys playing roller derby, working with dogs, and playing games – both video and tabletop.