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Tag: magnetic field

Earth’s inner core is much younger than we thought

Earth’s inner core is much younger than we thought

January 29, 2019

Rochester researchers have gathered the first field data that show the Earth’s inner core is only about 565 million years old—relatively young compared to the age of our 4.5-billion-year-old planet.

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Earth’s magnetic field fluctuations explained by new data

Earth’s magnetic field fluctuations explained by new data

February 27, 2018

Using new data gathered from sites in southern Africa, researchers have extended their record of Earth’s magnetic field back thousands of years to the first millennium.

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Earth’s magnetic field—reversing or fluctuating?

Earth’s magnetic field—reversing or fluctuating?

February 8, 2017

For the last 160 years, the Earth’s magnetic field has been weakening. In an essay shared on Newsweek, professor John Tarduno explains archaeomagnetism research, in which geophysicists team up with archaeologists to study the effects of these changes.

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