ISS Spacewalk: Russian Cosmonauts Discard Old Equipment.

Two Russian cosmonauts spent six hours outside the International Space Station on Thursday, cleaning up the exterior of the orbiting laboratory by removing and tossing overboard a trio of no longer needed devices, including a spent science experiment. The spacewalk also included the installation of a new stanchion for high-speed telemetry equipment and the retrieval of a micrometeoroid impact experiment that had been mounted outside the space station for a number of years.