Holy shit. The image you see above is from the Super-Kamiokande, or Super-K for short, which is a neutrino observatory in Tokyo. The Super-K is located 1,000 meters underground the Mozumi Mine, and is made up of 50,000 tons of pure water (not present in the picture above), and 11,200 photomultiplier tubes. And honestly, that about all I can understand about it,
What I do understand, is how amazing it looks, so check out even more super hi-res pictures here!
Link via Pruned