The failure of ghostly subatomic messengers called neutrinos to show up at an Antarctic telescope has knocked down a major astrophysical theory involving some of the most dramatic explosions in the universe.
"I would have preferred to have seen neutrinos," says the IceCube telescope's principal investigator Francis Halzen at the University of Wisconsin, Madison. "Null results are usually not very interesting, but in this case, it is."
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