Magnetic field around since Hadean

Earth’s magnetic field might have been shielding the planet from solar radiation and contributing to its habitability 770 million years earlier than previously recognized, according to a new study in Science.
 

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Timothy Oleson

Timothy Oleson

Tim is the news editor at EARTH, and writes the Bare Earth Elements blog. His scientific interests span the geosciences from biogeochemistry to seismology to space science. Formerly based in Madison, Wis., he now resides in the Washington, D.C., area.

Thursday, December 17, 2015 - 06:00