I recall first time I read of such a setup, the scientists started getting alarms of hundreds of these little critters detected all at once. Naturally they began pouring thru the logs and systems to find out what broke, when they got a call about a star that had gone SuperNova. That was the first I’d ever heard of Neutrinos.
Quasars, gamma ray bursts, quarks .. black holes.. cool stuff, putting it in ice makes sense I guess. :-)