SJG wrote in
:

New Eyes on the Cosmic-Ray Sky
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November 18, 2008 | High on the Argentinian pampa, 1,600 water-filled
"eyes" await the arrival of the most powerful high-energy particles in
the universe.
Read More at:
http://www.skyandtelescope.com/commu.../34667479.html

Here's a link to a Powerpoint presentation about the installation.

http://www.auger.org/observatory/ppt...rvatory_v5.ppt

Skip ahead to page five, the observatory plan, to see magnitude of the
project. It's extremely impressive. :]