U of U plans $6.4 M telescope array expansion

To investigate the energy-dense cosmic rays, they will need to update their toolkit, including the $25 million Telescope Array observatory near Delta. The expansion will require an additional $6.4 million, the University of Utah announced. Japan has stepped up to help, sending over $4.6 million to quadruple the 300-square-mile observatory near Delta. A National Science Foundation grant this fall is expected to cover the $1.8 million difference. The observatory is the only one of its kind in the Northern Hemisphere. The planned expansion would make the telescope array nearly as big and as sensitive as its rival, the Pierre Auger cosmic ray observatory in Argentina. Together, the two arrays monitor the northern and southern skies. Salt Lake Tribune