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A groundbreaking new study by NASA scientists has revealed a shocking correlation between the strength of the Earth’s magnetic field and oxygen levels in the atmosphere. According to the research, published in Science Advances, the results show that Earth’s magnetic field has followed similar patterns of growth and decline over the past 540 million years as atmospheric oxygen levels have fluctuated.
The study, conducted by a team at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, and the University of Leeds, has shed new light on the long-standing mystery of how Earth’s magnetic field came to be. Previously, scientists had only been able to analyze ancient rocks to determine historic oxygen levels, while the oldest evidence of Earth’s magnetic field comes from 3.7-billion-year-old rocks preserved in Greenland.
For centuries, researchers have sought to understand the correlation between these two seemingly unrelated phenomena. The study reveals that for nearly half a billion years, there is a strong link between the strength of the magnetic field and atmospheric oxygen levels. This unexpected discovery has significant implications for our understanding of the Earth’s early atmosphere and the emergence of life on the planet.
According to NASA scientists, the origin of the Earth’s magnetic field remains unclear. However, it is widely accepted that circulating currents within the molten iron-nickel alloy of the Earth’s outer core generate and sustain this phenomenon through a process known as geodynamo.
Source: www.forbes.com
