The Expedition 45 crew kicked off Tuesday with a wide variety of science exploring how living in space affects humans. The orbital laboratory residents also worked on U.S. and Russian spacewalking gear.
Astronauts Scott Kelly, Kjell Lindgren and Kimiya Yui participated throughout the day on Ocular Health studies. The trio subjected themselves to eye exams so scientists can understand microgravity’s effect on crew vision.
The three veteran International Space Station cosmonauts conducted their set of Russian space research and lab maintenance activities. One-Year crew member Mikhail Kornienko studied space digestion while Flight Engineer Oleg Kononenko explored how international crews work together on long duration missions. Sergey Volkov, a three-time station resident, worked on repairs inside the Zvezda service module.
Kelly and Lindgren were back inside the U.S. Quest airlock putting away tools and cleaning up after a pair of spacewalks in October and November. Volkov and Kononenko were in the Russian segment checking Orlan spacesuits for leaks ahead of a planned spacewalk in 2016.
The six-member Expedition 45 crew paused for a minute of silence today in tribute to the victims of Friday’s terrorist attacks in Paris. Flight Engineer Kjell Lindgren bowed his head in the middle of experiment work while Commander Scott Kelly said the crew “was shocked and saddened” by the events.
Engineers continued to troubleshoot station systems after 1 of the 8 station power channels went down last Friday. There were no impacts to crew activities, the station maintained orbital control and communications remained in good condition. Ground teams are discussing future repair plans and are currently able to manage the power balance for the foreseeable future.
The orbital residents kicked off Monday with the Veggie botany experiment as NASA learns to grow food in space. There were more vision and blood pressure checks helping scientists understand microgravity’s effects on vision. As usual, the crew also continued the upkeep of the orbital laboratory with some plumbing work, battery replacements and cleaning duties.
The Expedition 45 crew is wrapping up the work week on biomedical science and Cygnus mission preparations. The orbital residents also worked maintenance throughout the numerous modules inside the International Space Station.
Flight Engineers Kjell Lindgren and Kimiya Yui, who both have been in space over 100 days, checked their vision and blood pressure for the long-running Ocular Health study. Yui then worked on experiment hardware inside Japan’s Kibo lab module. Lindgren explored growing food in space for the Veggie botany experiment.
Commander Scott Kelly continued installing gear to prepare for the early December arrival of the Orbital ATK Cygnus cargo craft. He also worked on station maintenance tasks and cleaned his crew quarters.
On the Russian side of the orbital lab, One-Year crew member Mikhail Kornienko explored human digestion in space and sampled the station’s atmosphere and surfaces for microbes. Veteran cosmonauts Oleg Kononenko and Sergey Volkov worked in the Zvezda service module to replace a battery and repair overhead sheets. Volkov is the newest Expedition 45 crew member having been in space 70 days.
A trio of astronauts are still cleaning up after last week’s spacewalk outside the International Space Station. The cosmonauts are working on their suite of advanced space science and maintenance tasks. Also, the crew is preparing for the launch of the next Orbital ATK commercial cargo mission targeted for Dec. 3.
Japanese astronaut Kimiya Yui joined NASA astronauts Scott Kelly and Kjell Lindgren for the post-spacewalk cleanup work in the U.S. Quest airlock. The team stowed their spacewalk tools and hardware and scrubbed cooling loops in the U.S. spacesuits.
Kelly and Yui also partnered together to ready the station for the arrival of the Orbital ATK Cygnus cargo craft. The duo reviewed installation procedures for the Nitrogen Oxygen Recharge System scheduled to be delivered aboard the Cygnus.
In the Russian segment of the station, three veteran cosmonauts were busy researching a wide variety of subjects and working on Russian station systems. Oleg Kononenko looked at how microgravity affects a crew member’s spacecraft piloting skills. Sergey Volkov explored how vibrations on the station affect experiment results. One-Year crew member Mikhail Kornienko stowed gear inside an outgoing Progress craft for disposal.
NASA astronauts Scott Kelly and Kjell Lindgren cleaned up the International Space Station’s Quest airlock over the weekend after completing two spacewalks over nine days. The rest of the Expedition 45 crew started the work week with a series of ongoing science experiments to improve life on Earth and for future crews.
Japanese astronaut Kimiya Yui who assisted Kelly and Lindgren during their two spacewalks took some time off and relaxed Monday with the duo. However, the trio had their daily workouts and collected blood samples for stowage in a science freezer. Kelly also joined Kornienko for interviews with ABC’s “The View” and ITV News.
NASA astronauts Scott Kelly and Kjell Lindgren ended their spacewalk at 2:10 p.m. EST with the repressurization of the U.S. Quest airlock. The astronauts restored the port truss (P6) ammonia cooling system to its original configuration, the main task for today’s spacewalk. They also returned ammonia to the desired levels in both the prime and back-up systems.
In a minor departure from the planned tasks, the astronauts ran out of time to cinch and cover a spare radiator known as the Trailing Thermal Control Radiator. The radiator, which Lindgren retracted earlier in the spacewalk, was fully redeployed and locked into place in a dormant state.
The radiator had been deployed during a November 2012 spacewalk by astronauts Sunita Williams and Aki Hoshide as they tried to isolate a leak in the truss’ cooling supply by re-plumbing the system to the backup radiator. The leak persisted and was subsequently traced to a different component that was replaced during a spacewalk in May 2013.
The 7 hour and 48 minute spacewalk was the second for both astronauts, and the 190th in support of assembly and maintenance of the orbiting laboratory. Crew members have now spent a total of 1,192 hours and 4 minutes working outside the orbital laboratory.
Approximately 3.5 hours into today’s spacewalk, astronauts Kjell Lindgren and Scott Kelly have completed the first of several steps to restore the port truss (P6) ammonia cooling system to its original configuration.
Kelly and Lindgren have returned ammonia to the desired levels in both the prime and back-up systems.
NASA astronauts Scott Kelly and Kjell Lindgren switched their spacesuits to battery power at 6:22 a.m. EST, signifying the start of today’s spacewalk, planned for 6 hours and 30 minutes.
Lindgren is wearing a spacesuit with red stripes and is designated EV1. His helmet camera displays the number 17. Kelly is wearing a spacesuit with no stripes and is designated EV2. His helmet camera displays the number 18.
The astronauts are embarking on the 190th spacewalk in support of space station assembly and maintenance to restore the port truss ammonia cooling system to its original configuration following a leak detection exercise three years ago that ultimately resulted in the replacement of an ammonia pump on the station’s truss.
NASA Television is providing live coverage of today’s U.S. spacewalk from the International Space Station. The spacewalk is scheduled to begin at approximately 7:10 a.m. EST, or earlier, if the crew is ready to begin ahead of schedule, and will last about 6 hours and 30 minutes. NASA TV coverage begins at 5:30 a.m.
This is the second spacewalk for both Expedition 45 Commander Scott Kelly and Flight Engineer Kjell Lindgren. They will venture out of the Quest airlock to configure the port truss (P6) ammonia cooling system to its original state. A spacewalk in November 2012 by astronauts Sunita Williams and Aki Hoshide tried to isolate a leak in the truss’ cooling supply by re-plumbing the system to a backup radiator, but the leak persisted and was subsequently traced to a different component that was replaced during a spacewalk in May 2013. Now leak-free, officials decided to restore the port truss cooling system to its primary method of dispelling heat.
The spacewalk is the 190th in support of space station assembly and maintenance and the second in nine days for Kelly and Lindgren.
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.