Weather in Space


Have neutrinos ever been shown to have hit Earth from somewhere other than the Sun?

In 1987, the first supernova visible to the unaided eye to occur in centuries appeared in the southern sky. At almost exactly that same moment, neutrino detectors around the world recorded a total of 19 more neutrino reactions than usual. This worldwide detection does not sound like much, but it was hugely significant because it was the first time neutrinos were confirmed to have reached Earth from a specific celestial object other than the Sun.


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