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OlderJul 26, 2023

Hidden Portals in Earth's Magnetic Field

A favorite theme of science fiction is "the portal"--an extraordinary opening in space or time that connects travelers to distant realms. A good portal is a shortcut, a guide, a door into the unknown. If only they actually existed.... It turns out that they do, sort of, and a NASA-funded researcher at the University of Iowa has figured out how to find them.
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