NASA scientists uncovered a 540-million-year rhythm linking Earth’s shifting magnetic field to rises and dips in atmospheric oxygen, hinting that the planet’s molten core and moving continents may quietly choreograph the conditions that allow complex life to thrive. Earth’s Magnetism and Oxygen Dance For 540 million years, Earth’s magnetic field and the planet’s oxygen levels […]



Summary

NASA research reveals a 540-million-year cycle connecting Earth’s magnetic field variations with oxygen level fluctuations in the atmosphere. This suggests a deep link between the planet’s core dynamics, continental drift, and the development of conditions suitable for complex life. By identifying this rhythm, scientists propose that Earth’s internal processes play a significant role in shaping the atmosphere and, consequently, the evolution of life on the planet. The discovery highlights the interconnectedness of Earth’s systems and their impact on habitability over vast timescales.

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