NASA discovers link between Earth’s core and life-sustaining oxygen

ScienceDaily
Jun 27, 2025, 10:55 am7 pts
For over half a billion years, Earth’s magnetic field has risen and fallen in sync with oxygen levels in the atmosphere, and scientists are finally uncovering why. A NASA-led study reveals a striking link between deep-Earth processes and life at the surface, suggesting that the planet’s churning molten…

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