earth magnetic field
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'Explosive Auroras': What Causes These Strobe Light Displays?High-speed video of the northern lights has revealed why the glorious celestial shows sometimes flicker like strobe lights: It's all about the gases.
By Jesse Emspak Published
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Giant 'Lava Lamp' Inside Earth May Cause Magnetic Poles to FlipOpinion Geoscientists have discovered that regions on top of the Earth's core could behave like giant lava lamps, with blobs of rock periodically rising and falling deep inside our planet.
By Paula Koelemeijer Published
Opinion -
Ceramic Pottery Reveals an Ancient Geomagnetic Field SpikeThe Earth's geomagnetic field increased in intensity around the Levant during the late eighth century B.C. before rapidly weakening.
By Stephanie Pappas Published
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Why Scientists Think Earth's Magnetic Poles Are About to FlipOpinion Are we headed to a magnetic reversal and all the global disruption that would bring? Enter archaeomagnetism. A look at the archaeological record in southern Africa provides some clues.
By John Tarduno Published
Opinion -
How One Scientist Decoded the Mysterious Sounds of the Northern LightsBy Tom Metcalfe Published
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How Earth's Hidden Magma Ocean FormedBy Charles Q. Choi Published
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'Magnetic' Discovery May Reveal Why Earth Supports Life and Mars Doesn'tEarth's magnetic field, which protects the planet from harmful blasts of solar radiation, is much older than scientists had previously thought, researchers say.
By Charles Q. Choi Published
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Sun's Shifting Magnetic Field May Predict Lightning StrikesThe sun may be partly responsible for lightning strikes on Earth, and scientists think fluctuations in the sun's magnetic field could be used to predict lightning storms weeks in advance.
By Kelly Dickerson Published
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Super-Earths Get Magnetic 'Shield' from Liquid MetalSuper-Earth planets could get magnetic fields from this new liquid metal ingredient.
By Charles Q. Choi Published
