July 24, 2002. Photos by Ellen Jaskol. Dan Durda, Senior Research Scientist at the Southwest Research Institute in Boulder, Co. He's holding a model of an F-18 Hornet, which he flies in to conduct airborne astronomical research at 49,000 ft, and in some photos he's holding his helmet and oxygen mask, which he wears while flying. Photos are taken at Chataqua Park in Boulder.