University police arrested five protesters for interrupting a Board of Regents meeting Friday, delaying it for an hour as they called on the University to end its involvement in the controversial ...

Located in Arizona's Pinaleno Mountains at an altitude of about 7,545 feet, the Large Binocular Telescope operates under an international collaboration between the U.S., Italy, and Germany.

The UArizona-managed Large Binocular Telescope on Mount Graham is the only one of its kind, with two ... [+] 27-foot mirrors mounted side by side. A powerful adaptive optics system compensates for ...

The Center for Biological Diversity and Maricopa Audubon sued the U.S. Fish and Wildlife Service today for failing to protect habitat essential to the survival and recovery of southeast Arizona’s ...

TUCSON, Ariz.— In response to a lawsuit from the Center for Biological Diversity and Maricopa Audubon, the U.S. Fish and Wildlife Service today agreed that designating additional critical habitat for ...

The Mount Graham red squirrel population in Arizona has risen more than expected, according to the Arizona Department of Game and Fish. The latest survey shows an increase of about 89 squirrels ...