Colorado is chosen site to measure cosmic rays

DENVER, Colo. (AP) — An international science group Tuesday chose Colorado as the site of a $50 million observatory to measure the cosmic rays that continually bombard the Earth.

The Pierre Auger Collaboration said the observatory — a sprawling 40-mile-by-40-mile array of remotely monitored sensors — will be built in the southeast corner of Colorado about 180 miles southeast of Denver.

It will be a counterpart to the collaboration's Southern Hemisphere observatory, in Argentina.