'For years there was a neutrino director located deep in the Soudan Underground Mine near Ely. Now, a lab in Ash River just outside Voyageurs National Park detects neutrinos from Fermilab. But that beam is scheduled to shut off in February because scientists have built a newer one.

'"That beam goes right under Wisconsin and eclipses Lake Superior off of Two Harbors on its way to the labs up north,” said Habig. “The chance to see what happens in Lake Superior as the beam goes through it — this is why we're here."'
https://www.mprnews.org/story/2026/11/11/neutrino-detectors-being-installed-near-duluth-to-hunt-ghost-particles-in-lake-superior

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