Magnetic irregularities
A magnetic field is the result of the motion of a molten core. Earth’s magnetic poles have been known to shift, but astronomers have suggested that Mercury’s have been doing the same. Mercury’s ancient
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A magnetic field is the result of the motion of a molten core. Earth’s magnetic poles have been known to shift, but astronomers have suggested that Mercury’s have been doing the same. Mercury’s ancient
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How Small is Mercury? Astronomy Book for Beginners | Children's Astronomy Books
byBaby ProfessorEbook
101 Fun Facts (and more) About the Planets: A Set of Eight 15 Minute Books, Educational Version
byJeannie Meekins