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News From the Field

Oldest Measurement of Earth's Magnetic Field Reveals Battle Between Sun and Earth for Our Atmosphere


March 5, 2010

artist interpretation, earth aurora Scientists at the University of Rochester have discovered that the Earth's magnetic field 3.5 billion years ago was only half as strong as it is today, and that this weakness, coupled with a strong wind of energetic particles from the young sun, likely stripped water from the early Earth's atmosphere. Full Story

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University of Rochester

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