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Evidence of 3.5-billion-year-old bacterial ecosystems found in Australia

Evidence of 3.5-billion-year-old bacterial ecosystems found in Australia

Reconstructing the rise of life during the period of Earth’s history when it first evolved is challenging. Earth’s oldest sedimentary rocks are not only rare, but also almost always altered by hydrothermal and tectonic activity. A new study from a team including Carnegie’s Nora Noffke, a visiting investigator, and Robert Hazen revealed the well-preserved remnants […]