If Betelgeuse goes boom: How DUNE would respond to a nearby supernova – Fermi National Accelerator Laboratory

In late 2019, Betelgeuse, the star that forms the left shoulder of the constellation Orion, began to noticeably dim, prompting speculation of an imminent supernova. If it exploded, this cosmic neighbor a mere 700 light-years from Earth would be visible in the daytime for weeks. Yet 99% of the energy of the explosion would be carried not by light, but by neutrinos, ghost-like particles that rarely interact with other matter.
If Betelgeuse does go supernova soon, detecting the emitted neutrinos w…

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