Unveiling Ancient Earth: New Method Detects Epochal Life

Scientists have developed a new approach using chemical fingerprints to detect signs of ancient life in rocks, offering potential for discovering extraterrestrial life. By analyzing molecular fragments with machine learning, researchers found evidence of photosynthesis 800 million years earlier than previously recorded. The method may revolutionize astrobiological studies.

In a groundbreaking study, scientists have employed machine learning to detect some of the oldest signs of life on Earth. This novel method, which recognizes chemical fingerprints of living organisms in ancient rocks, could also aid in the search for extraterrestrial life.

Researchers discovered evidence of microbial life in 3.3-billion-year-old rocks and traces of oxygen-producing photosynthesis dating back 2.5 billion years, suggesting a far earlier appearance of complex life forms than previously believed. This approach promises to enhance our understanding of early life both on our planet and beyond.

Funded by NASA, the study explores potential applications for identifying life on other celestial bodies, such as Mars, Europa, and Enceladus. As scientists continue to unravel Earth's ancient biological past, they simultaneously unlock doors to studying life elsewhere in the solar system.

(With inputs from agencies.)