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Rover finds hints of an ancient Martian carbon cycle
Rather than cycling, some of Mars' carbon took a one-way trip into rocks.
https://arstechnica.com/science/2025/04/rover-finds-hints-of-an-ancient-martian-carbon-cycle/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social
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