The mystery deepens: Ghostly neutrinos and fast radio bursts don't come from the same place

in Antarctica. Located near the geographic South Pole, the IceCube facility consists of dozens of strands of detectors sunk into the ice sheet. When the rare neutrino collides with a water molecule, it produces a flash of light that the detectors see.

Between 2008 and 2018, the IceCube team reported over 11 million neutrino strikes. The vast majority were of relatively low energy, but a small fraction had incredibly high energies — some of the highest energies ever recorded in any particle. Those neutrinos seem to come from all over the sky, indicating that they have extragalactic origins. Because neutrinos don't really interact with anything else, they travel in straight lines, meaning the direction they come from is truly the direction of their origins .don't appear to be correlated with a particular kind of galaxy or location on the sky. Surely, some high-energy process is generating them, but it's not clear exactly what that is.FRBs are truly mysterious.

Recently, astronomers spotted a connection between an FRB event and a magnetar — a highly magnetized, rapidly spinning— pointing to a potential origin. But that's only a single observation, and we need a lot more work to uncover the origin of all FRBs. Put simply, it would be really awesome if FRBs came from the same places on the sky as high-energy neutrinos. Because we don't fully understand the ultimate sources of either, a correlation would be a massive clue. For example, if magnetars are truly the source of all FRBs, and high-energy neutrinos came from the same direction, that would be strong evidence that magnetars are responsible for producing high-energy-neutrino events as well.

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It's all done with mirrors.

That's an amazing photo

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