Photo de stock - 03/19/2001 __ At the Space Station Processing Facility, members of the STS_104 crew check out equipment. At left is Mission Specialist Michael L. Gernhardt, and second from right is Mission Specialist James F. Reilly II. The crew is taking part in Crew Equipment Interface Test activities. The mission will carry the Joint Airlock Module to the International Space Station. The U.S._made module will allow astronauts and cosmonauts in residence on the Station to perform future spacewalks without the presence of a Space Shuttle. The module, which comprises a crew lock and an equipment lock, will be connected to the starboard right side of Node 1 Unity. Atlantis will also carry oxygen and nitrogen storage tanks, vital to operation of the Joint Airlock, on a Spacelab Logistics Double Pallet in the payload bay. The tanks, to be installed on the perimeter of the Joint Module during the mission’s spacewalks, will support future spacewalk operations and experiments plus augment the resupply system for the Station’s Service Module