![]() According to the NASA press release, it’s likely that this water was delivered by projectiles landing on its surface or could be created by micrometeorite impacts converting the Moon’s OH, ultimately derived from hydrogen implanted by Solar wind, into H 2O. Unlike Hauri’s investigations, which suggested that water in the lunar interior played an important role in the origin and evolution of the Moon, this new finding indicates that there may be some mechanism actively forming and retaining water on the surface today. Three years later, he led the team that discovered water in the Moon’s interior at concentrations not dissimilar to the dryer portions of Earth’s interior. Then in 2008, Hauri and his colleagues revealed that tiny beads of lunar volcanic glass collected during the Apollo missions contained water. Scientists used to think that the Moon was “bone dry”- depleted of water by the violent events of its formation. ![]() However, this detection of surface water follows more than a decade of discovery about lunar water by the late EPL geochemist Erik Hauri, who first reported the existence of water on the Moon in 2008. ![]() NASA’s Monday announcement touted confirmation “that molecular water has been discovered on the sunlit surface of the Moon,” indicating that it “may be distributed across the lunar surface, and not limited to cold, shadowed places.’” But the big reveal may have left you with a sense of deja vu. NASA kept the scientific community on the edge of its collective seat regarding “exciting news” about the Moon and speculation filled the Twitterverse for a week.
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