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Photos

Snapshots of what’s happening in the Defense Department.

Army Sgt. Sarah Elliott, a biological research assistant at the U.S. Army Research Institute of Environmental Medicine, Natick, Mass., talks about one of the institute’s two altitude chambers. The chambers can simulate altitudes of up to nearly 30,000 feet and temperatures to 25 degrees below zero.

Army Sgt. Sarah Elliott, a biological research assistant at the U.S. Army Research Institute of Environmental Medicine, Natick, Mass., talks about one of the institute’s two altitude chambers. The chambers can simulate altitudes of up to nearly 30,000 feet and temperatures to 25 degrees below zero.

Army Sgt. Sarah Elliott, a biological research assistant at the U.S. Army Research Institute of Environmental Medicine, Natick, Mass., talks about one of the institute’s two altitude chambers. The chambers can simulate altitudes of up to nearly 30,000 feet and temperatures to 25 degrees below zero.

Photo Gallery