Water is ubiquitous on Earth—about 70 percent of Earth’s surface is covered by the stuff. Water is in the air, on the surface, and inside rocks. Geologic evidence suggests water has been stable on Earth since about 4.3 billion years ago. The history of water on early Mars is less certain. Determining when water first […]

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Link :
https://singularityhub.com/2024/11/25/a-4-45-billion-year-old-crystal-from-mars-reveals-the-planet-had-water-from-the-beginning/