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5.11.2015
NASA astronaut Scott Kelly snaps a quick space selfie during his first ever spacewalk on Oct 28, 2015.
Flight Engineer Kjell Lindgren
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Two NASA astronauts are getting ready for their second spacewalk Friday morning while also conducting science. The rest of the global crew worked on orbital lab maintenance and continued international space research.
Expedition 45 Commander Scott Kelly and Flight Engineer Kjell Lindgren organized their spacewalk tools today and attached checklists to their spacesuit cuffs. Japanese astronaut Kimiya Yui, who will coordinate Friday’s spacewalk from inside the International Space Station, assisted Kelly and Lindgren with their tool checks.
The three astronauts also had time today for some science work to improve life on Earth and for future crews.
Lindgren downloaded data captured from tiny free-flying satellites known as SPHERES that test autonomous rendezvous and docking maneuvers and other flight techniques. Yui worked on the Capillary Flow Experiment with results potentially benefiting fluid systems on future spacecraft. Finally, Kelly took a test to measure his cognitive adaptation during his year-long spaceflight.
Quelle: NASA
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Update: 6.11.2015 8.00 MEZ.
Spacewalkers Ready to Wrap Up Cooling System Repair Job
A solar array is seen in the foreground as the International Space Station flies over an aurora.
Two astronauts are ready to finish a cooling system repair job that was started three years ago on the outside of the International Space Station. NASA astronauts Scott Kelly and Kjell Lindgren will exit the U.S. Quest airlock Friday at 7:10 a.m. EST for about six hours and 30 minutes of spacewalking tasks.
Kelly and Lindgren are restoring the port truss cooling system back to its original configuration after leak repair work done in November 2012 by spacewalkers Suni Williams and Aki Hoshide. More leak repair work was done to the system during a May 2013 spacewalk by NASA astronauts Chris Cassidy and Tom Marshburn.
Kelly and Lindgren will also top off the cooling system’s ammonia levels using storage tanks. The Photovoltaic Thermal Control System dissipates heat generated at the space station from radiators attached to the truss structure. This will be the second spacewalk for both astronauts whose first was on Oct. 28.
Japanese astronaut Kimiya Yui and veteran cosmonaut Sergey Volkov will assist the spacewalkers into their spacesuits and the airlock before depressurization begins. Yui and Volkov will also welcome the spacewalkers back into the station at the end of their excursion.
Quelle: NASA
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