One of the motivations for this work is the observation of high-energy cosmic rays that appear to violate the Greisen-Zatsepin-Kuzmin limit: the so-called GZK paradox.
External references
... to the United States Census Bureau, the town has a total area of 14.5 km² (5.6 mi²). 14.5 km² (5.6 mi²) of it is land and none of the area is ...