Contrary to previous assumptions, the Moon's passage through Earth's magnetic field, or "geotail," does not lead to lower plasma densities. Listen to Story Scientists from the Space Physics Laboratory ...

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Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital and, Harvard Medical School, Boston, Massachusetts 02139, United States ...

If you need help visualizing magnetic fields, these slow-motion video captures should educate or captivate you. Flux lines are difficult to describe in words, because magnet shape and strength ...