When a supermassive black hole tears apart a star (pictured here), it produces abundant light – and possibly neutrinos, too.
DESY / Scientific communication laboratory
By Daniel CleryFeb. 22, 2021 at 11:00 a.m.
Neutrinos are everywhere – billions of virtually massless particles pass through your body every second – but they’re notoriously hard to pin down, especially the high-energy few in deep space. Only a dozen of these cosmic neutrinos are detected each year, and scientists had only connected one to its source. Now IceCube, the kilometer-wide neutrino detector nestled deep beneath the South Pole, has traced another to its distant birthplace: a supermassive black hole tearing apart a star in a 750 million galaxy. light years.
“It’s a very exciting story if that’s correct,” says Tsvi Piran, theorist at the Hebrew University of…
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