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MOLECULAR BIOSIGNATURES
Could Life on Earth Be Older Than We Thought? Scientists Find Clues in 3.3 Billion-Year-Old RocksScientists have unearthed faint chemical traces in rocks over 3.3 billion years old, potentially representing Earth's earliest biological e...
A New Study Suggests Life May Have Appeared on Earth Much Earlier Than Scientists Once ThoughtScientists have found chemical evidence of life on Earth from over 3.3 billion years ago. This discovery pushes back the timeline for life'...
Earth Once Had Purple Oceans, Scientists SayEarly Earth might have shimmered in shades of purple, not green, according to the Purple Earth Hypothesis. Researchers propose that before ...