DRYDEN FLIGHT RESEARCH CENTER left and Dennis Pitts install a boilerplate Dream Chaser canopy structure over the cockpit of a flight simulator in the simulation laboratory.

DRYDEN FLIGHT RESEARCH CENTER, Calif. - Simulation technicians Brent Bieber, left, and Dennis Pitts install a boilerplate Dream Chaser canopy structure over the cockpit of a flight simulator in the simulation laboratory at NASA's Dryden Flight Research Center in California. The modification will give Dream Chaser pilot-astronauts a more representative view of the actual flight profiles the spacecraft would fly during piloted approach and landing tests. Sierra Nevada Corporation's Space Systems division is conducting uncrewed captive- and free-flight approach and landing tests of its Dream Chaser at Dryden during the summer and fall. Photo credit: NASA/Ken Ulbrich