Cassidy and Wolf in the MDDK during STS-127 / Expedition 20 Joint Operations

S127-E-006972 (19 July 2009) --- On Endeavour's mid deck, astronauts Christopher Cassidy (left) and Dave Wolf, both STS-127 mission specialists, may be talking over their upcoming shared space walk, scheduled for flight day 8. The extravehicular activity they share will be the third and final EVA session in a week's time for Wolf and it will be the first of three for Cassidy.