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Ancient Ancestor LUCA Uncovered: Earth’s 4.2 Billion-Year-Old Secret

4/18/2025

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Summary

Story summary

Researchers have uncovered LUCA, our planet's ancient ancestor, dating back 4.2 billion years. This remarkable organism, with approximately 2,600 genes, including those for a primitive immune system, flourished in hydrothermal vents. This discovery hints at the rapid emergence of life on Earth and raises exciting possibilities for life beyond our planet.

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Story summary

Researchers have uncovered LUCA, our planet's ancient ancestor, dating back 4.2 billion years. This remarkable organism, with approximately 2,600 genes, including those for a primitive immune system, flourished in hydrothermal vents. This discovery hints at the rapid emergence of life on Earth and raises exciting possibilities for life beyond our planet.