Considering that neutrinos can pass through a light year of solid lead unimpeded[0], they must face a lot of challenges in determining when a neutrino has been

Considering that neutrinos can pass through a light year of solid lead unimpeded[0], they must face a lot of challenges in determining when a neutrino has been generated and when they are finally able to detect one arriving at its destination. [0] http://hyperphysics.phy-astr.gsu.edu/hbase/particles/neutrino3.html http://hyperphysics.phy-astr.gsu.edu/hbase/particles/neutrin...