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NASA's Phoenix Mars Lander has ended operations after repeated attempts to contact the spacecraft were unsuccessful.

NASA will hold a media teleconference Wednesday, May 26, at 1 p.m. EDT, to discuss new results from the Swift satellite's survey of active black holes.

Astronauts Michael Good (left) and Garrett Reisman look through the aft flight deck windows of space shuttle Atlantis during the mission’s third aspacewalk. During the spacewalk, Good and Reisman completed the installation of the final two of the six new batteries for the B side of the port 6 solar array. In addition, the astronauts installed a backup ammonia jumper cable between the port 4 and 5 trusses of the station and transferred a power and data grapple fixture from the shuttle to the station. Image Credit: NASA