Readers ask about rogue black holes, zippy neutrinos and more

Navigating neutrinos

Tidal disruption events, in which supermassive black holes rip apart stars, could supercharge ghostly subatomic particles called neutrinos, Emily Conover reported in “Zippy neutrino linked to a source” (SN: 6/18/22, p. 8).

Conover reported that scientists tracked a high-energy neutrino to an area of the sky where a bright flare, thought to be a tidal disruption event, had been discovered roughly a year before.