S127-E-007692 (22 July 2009) --- Astronaut Christopher Cassidy, STS-127 mission specialist, prepares to participate in Endeavour's third space walk of a scheduled five overall for this flight.
Date July 22, 2009
S127-E-007692 (22 July 2009) --- Astronaut Christopher Cassidy, STS-127 mission specialist, prepares to participate in Endeavour's third space walk of a scheduled five overall for this flight.