These Huge Beer Keg Tanks Will Study Cosmic Explosions
Located 13,500 feet above sea level on the slopes of Mexico’s Volcán Sierra Negra, a new scientific tool comprised of 300 huge tanks holding 55 million liters of water, will soon detect the highest energy photons ever observed. The High Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory was inaugurated a few days ago, March 20, and…