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national | news | Google News: U.S. | May 29, 2026 3:50 PM
Mars's manganese 'bathtub ring' reveals ancient ocean timeline and its potential for life
Mars's manganese 'bathtub ring' reveals ancient ocean timeline and its potential for life Phys.org NASA Uses Mineralogical Marker to Understand Ancient Martian Climate NASA Science (.gov) Carbon-Rich Rocks May Have Cooled the Ancient Martian Atmosphere eos.org Mineral ring on Mars reveals an ocean that lasted a million years Earth.com Mineral clues in Gale Crater track ancient Mars climate change Phys.org
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