Scientists uncover the 2.3-billion-year-old secret that helped keep Earth habitable

ScienceDaily reports that scientists may have solved a 2.3-billion-year-old mystery about how Earth maintained enough oxygen to support life.

Ancient rocks reveal that phosphorus recycling in the oceans created a self-sustaining cycle that helped keep oxygen levels high, even as the planet underwent dramatic environmental changes. The discovery challenges assumptions about Earth's early atmosphere and raises new questions about why complex life took so long to emerge.

This science story centres on the United States.

Why it matters

Research developments are often early steps — further studies typically determine how significant they prove to be.

Key details

Location

United States · Americas

Reported by

ScienceDaily

First reported

13 Oct 2026, 02:57 IST

Key names

Earth

Section

Science

Sources

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• ScienceDailyScientists uncover the 2.3-billion-year-old secret that helped keep Earth habitable 13 Oct, 02:57

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