MARVIN FONG THE PLAIN DEALER 7/26/09
Visitors check out the Thermal Vacuum Facility inside Plum Brook’s spacecraft testing building. Large components can be heated and cooled in the 12-story chamber, the largest of its kind in the world.
Visitors look at the test chamber for spacecraft inside the space power test facility at the NASA Plum Brook Station in Sandusky, OH, Monday, July 6, 2009. (Marvin Fong/ The Plain Dealer)