Quick Takes - Where do astrophysical neutrinos come from?

IceCuber Ignacio Taboada explains where astrophysical neutrinos come from and the challenges they bring once detected in this new Quick Take Video.

[shawnw]

Please tell us what's going on over at the Great Lakes, Ramsar, and New Zealand!!!

[AresErrantKnight]

Fair enough but why is it so hard to tell ? Neutrinos don't have charge (similar to photons) so they aren't deviated (too) much from their original emission point (yea there's G lensing and other ST deformations but they're pretty rare right ?). They barely interact which is a bonus. Or perhaps it's the flavour oscillation that causes a problem ? Like you observe a mu neutrino at high E and you don't know which state it was created as since you don't know the distance from the source ? (2 variable problem with distance ie source and flavour as variables ?). If someone knows please tell.