Este fue
tu cielo.

Ice Fishing for Cosmic Neutrinos

Scientists are melting holes in the bottom of the world near the South Pole. These holes are now used as astronomical observatories. Astronomers with the Antarctic Muon and Neutrino Detector Array, AMANDA, lower strings of basketball-sized light detectors into each vertical lake. The detectors are sensitive to blue light emitted from ice collisions, which indicates cosmic neutrinos.