For years, scientists have wondered about the origins of the vast amount of water covering the majority of our planet. A recent study challenges the long-held theory that water came from asteroids. Researchers question whether an early Earth had enough hydrogen and oxygen to create its own water. The discovery raises more questions than answers about the mysterious beginnings of our planet’s most essential resource.
Source: https://www.washingtonpost.com/climate-environment/2025/04/16/origin-of-water-on-earth-study