NASA ADMINISTRATOR CHARLES BOLDEN LISTENS AS BALL AEROSPACE TECHNOLOGIES CORPORATION PRINCIPLE OPTICAL ENGINEER DAVE CHANEY EXPLAINS HOW MARSHALL'S X-RAY AND CRYOGENIC FACILITY CHILLS THE JAMES WEBB SPACE TELESCOPE MIRROR SEGMENTS TO -414 DEGREES FAHRENHEIT TO SIMULATE THE COLD TEMPERATURES OF SPACE.
Photographer DAVID HIGGINBOTHAM
Date April 1, 2010