Study the magnetic fields in a sunspot pair as observed by the Helioseismic Magnetic Imager, March 29, 2010
Magnetic fields in a sunspot pair, as observed by the Helioseismic Magnetic Imager on board the Solar Dynamics Observatory, March 29, 2010. White and black trace opposite magnetic polarities.
NASA/GSFC/SDO/HMI
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Encyclopædia Britannica, Inc.Hell Creek was home to T. rex, Triceratops, and now…these foot bones.
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Encyclopædia Britannica, Inc.Media Editor: Lauren Sims
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Encyclopædia Britannica, Inc.The average dolphin eats 15 to 20 pounds of fish per day.Media Editor: Lauren Sims
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© MinutePhysics (A Britannica Publishing Partner)Learn about diamagnetism.
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NASA/Goddard Space Flight Center Scientific Visualization StudioZoomed-in view of a large sunspot group taken by the Helioseismic and Magnetic Imager on board the Solar Dynamics Observatory satellite, March 29, 2010.
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© MinutePhysics (A Britannica Publishing Partner)The multiple north poles that exist on Earth: the geographic North Pole, the magnetic North Pole, and the geomagnetic North Pole.
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Encyclopædia Britannica, Inc.Learn about magnetic fields and interactions between magnetic poles.