How oxygen first reached Earth's oceans
Phys.org • 12/9/2025 • Last cited 12/14/2025
Summary
Research indicates that for about 2 billion years, Earth's atmosphere lacked oxygen, which is crucial for complex life, and the process of how oxygen first entered the oceans during the Great Oxidation Event remains uncertain (Phys.org).
Lindy Score Breakdown
35
Age (0-35)
37 days
4
Velocity (0-40)
1 source (low traction)
6
Tier (0-10)
Phys.org
0
Breadth (0-15)
1 unique
Total Score45/100
Related Story Timeline
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Score BreakdownRisk 50
Source Reputation: Low-trust source (6/20 pts)
Consensus: Single source - no independent confirmation yet
Age: 37 days - proven survivor
Stories gain Lindy status through source reputation, network consensus, and time survival.
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