NASA gives green light to space walk
International Space Station Commander Gennady Padalka and NASA ISS Science Officer Mike Fincke will leave the Pirs docking compartment’s airlock again Wednesday afternoon for a second try to repair a Station circuit breaker. Mission managers gave formal approval to the Wednesday spacewalk at a Tuesday morning meeting. Its purpose is to restore power to one of the 600-pound gyroscopes that orient the Station in space.