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The original was posted on /r/science by /u/chrisdh79 on 2024-11-24 12:27:51+00:00.

Original Title: New research uncovers the oldest evidence of ancient hot water activity on Mars, revealing the planet may have been habitable in its past | Analyzing a 4.45 billion yr old zircon grain from the meteorite NWA7034, also known as Black Beauty, found geochemical ‘fingerprints’ of water-rich fluids.