RT @theAGU: Earth's magnetic field is generated by motion of liquid metal in Earth's outer core. Variations in Earth's magnetic field since…
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5,710 followers
RT @theAGU: Earth's magnetic field is generated by motion of liquid metal in Earth's outer core. Variations in Earth's magnetic field since…
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RT @theAGU: Earth's magnetic field is generated by motion of liquid metal in Earth's outer core. Variations in Earth's magnetic field since…
298 followers
RT @theAGU: Earth's magnetic field is generated by motion of liquid metal in Earth's outer core. Variations in Earth's magnetic field since…