12 agosto 2015
A school bus-sized detector packed with 170 tons of liquid argon has seen its first particle footprints. On Aug. 6, MicroBooNE, a liquid-argon time projection chamber recorded images of the tracks of cosmic muons, particles that shower down on Earth when cosmic rays collide with nuclei in our atmosphere.
http://www.sciencedaily.com/releases/2015/08/150812170047.htm
