iss050e054558 (03/05/2017) --- NASA astronaut Peggy Whitson signs a bulkhead on the International Space Station next to the Expedition 50 crew patch.
Date March 5, 2017
iss050e054558 (03/05/2017) --- NASA astronaut Peggy Whitson signs a bulkhead on the International Space Station next to the Expedition 50 crew patch.