By Becky Ferreira Feb 26, 2013
Neutrinos are subatomic particles that the Sun spits out by the trillion trillion trillion (...trillion). In fact, about 65 billion neutrinos pass through a square centimeter every second, which means there are a whole lot of them passing through your body at this very moment! Despite their numbers, neutrinos are incredibly difficult to detect, which means neutrino observatories have to be huge and specialized, like the Sudbury Observatory pictured here. But a much bigger, crazier observatory called the Super K is being built in Japan: check out pictures of this bizarre facility here!