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Earth's last magnetic field reversal took far longer than once thought（图）
Earth magnetic field reversal took longer once thought
2019/10/21
Earth's magnetic field seems steady and true -- reliable enough to navigate by. Yet, largely hidden from daily life, the field drifts, waxes and wanes.The magnetic North Pole is currently shifting tow...
Student-built planeterrella recreates Earth’s vivid light shows in miniature
Department of Physics and Astronomy Hawkeyes in Space Iowa Planeterrella planeterrella Aurora magnetic field
2017/3/13
If you’ve never seen the northern lights, you’re in luck: They’re on display courtesy of an exhibit at the University of Iowa.UI students have recreated in miniature Earth’s auroras, the dancing waves...