News Release Details


Discovery Park Campus presents Dean Ketelsen, Research Specialist at Steward Observatory Mirror Lab

By Travis Nunley

Thatcher, AZ— EAC’s Discovery Park Campus is pleased to welcome Dean Ketelsen, Senior Research Specialist at the University of Arizona’s Steward Observatory Mirror Lab, for a free lecture on November 20, at 6:30 pm.

Ketelsen has been at the Mirror Lab for over two decades and leads the fifty-person team at the lab, which produces massive, twenty-seven foot mirrors. In his lecture, he will share some of the projects that the Mirror Lab is working on, including the Large Binocular Telescope on Mt. Graham, and the Large Synoptic Survey Telescope and the extraordinary seven-mirrored Giant Magellan Telescope, both in Chile. Ketelsen has polished twelve of these massive mirrors—the equivalent of 4,000 square feet of highly polished research grade mirror surface.

“We are very fortunate to have Dean come and share Steward Observatory news with us,” says Paul Anger, director of Discovery Park Campus. “He is very busy working on the mirrors of the most technologically advanced and powerful telescopes in the world. He ground and polished the mirrors in the Vatican Advanced Technology Telescope and the Large Binocular Telescope at the Mt. Graham Observatory and he has more experience and understanding of these mirrors than anyone else on Earth.”

There will be door prizes, tours, and space shuttle simulator rides, as well as star gazing from the Gov Aker observatory— all free of charge and minutes away from home. For more information, contact Anger, director of Discover Park Campus, at (928) 428-6260.