Three astronauts are relaxing today after a spacewalk on Friday and weekend cleanup work. Meanwhile, a pair of spacecraft will be departing the International Space Station over the next two weeks.
NASA astronauts Jeff Williams and Kate Rubins successfully installed a new international docking adapter Friday morning during a five hour and 58-minute spacewalk. Japanese astronaut Takuya Onishi assisted the duo from inside the station, while all three cleaned up the Quest airlock afterward where they stowed their spacesuits and tools.
Williams is scheduled to return to Earth on Sept. 6 with cosmonauts Oleg Skripochka and Alexey Ovchinin ending Expedition 48. The two cosmonauts began their departure preparations today to get the Soyuz TMA-20M spacecraft ready for undocking and landing in Kazakhstan.
Before Expedition 48 returns home in two weeks the SpaceX Dragon spacecraft will leave the station this Friday at 6:10 a.m. EDT. The crew is loading the space freighter with gear and science for analysis by NASA engineers on the ground. Dragon will splashdown in the Pacific Ocean a few hours after its release Friday and be retrieved by SpaceX personnel.
Two NASA astronauts switched their spacesuits to battery power this morning at 8:04 a.m. EDT aboard the International Space Station to begin a spacewalk planned to last some six and a half hours. Expedition 48 Commander Jeff Williams and Flight Engineer Kate Rubins will install the first of two international docking adapters (IDAs) that will enable future arrivals of Boeing and SpaceX commercial crew spacecraft.
The docking adapter arrived to the space station July 20 on a SpaceX Dragon cargo resupply spacecraft. On Wednesday, ground controllers used the Canadarm2 robotic arm, and its attached “Dextre” Special Dexterous Manipulator, to extract the IDA from the trunk of Dragon and position it just 2 feet away from Pressurized Mating Adapter-2 located on the forward end of the Harmony module.
Once the IDA is moved to a surface to surface contact with the PMA, Williams and Rubins will begin work to hook up tethers in advance of Japan Aerospace Exploration Agency astronaut Takuya Onishi sending commands to close the hooks between the two docking ports. Once the hooks are closed, Williams and Rubins will press ahead to mate power and data connectors for future use of the IDA.
Williams is wearing the spacesuit with a red stripe. Rubins is wearing the spacesuit with the white stripe. This is the fourth spacewalk in Williams’ career and the first for Rubins. It is the 194th spacewalk for the space station
NASA TV’s Public Channel (NTV-1) is broadcasting enhanced coverage of the spacewalk including operational commentary, in-studio experts and features. The Media Channel (NTV-3) is carrying a clean feed of video from the space station with operational commentary. Full schedule details are available at:
Expedition 48 Commander Jeff Williams and Flight Engineer Kate Rubins of NASA will begin a spacewalk outside of the International Space Station at 8:05 a.m. EDT Friday. NASA TV coverage will begin at 6:30 a.m. NASA TV’s Public Channel (NTV-1) will broadcast enhanced coverage of the spacewalk including operational commentary, in-studio experts and features. The Media Channel (NTV-3) will broadcast a clean feed of video from the space station with operational commentary. Full schedule details are available at:
Williams and Rubin will conduct the spacewalk to install and connect the first of two international docking adapters that will be used for the future arrivals of Boeing and SpaceX commercial crew spacecraft.
Follow @space_station on Twitter and #spacewalk for updates. For more information about the International Space Station, including current residents, visit:
A new port for commercial crew vehicles was robotically removed from the back of the SpaceX Dragon Wednesday night. The International Docking Adapter was placed in position for its installation Friday morning to a pressurized mating adapter attached to the Harmony module.
Two spacewalkers, Commander Jeff Williams and Flight Engineer Kate Rubins, will complete the installation work during a spacewalk scheduled to begin Friday at 8:05 a.m. EDT. The NASA astronauts will install cables and outfit the docking port that will enable future Boeing and SpaceX crew vehicles to dock at the International Space Station.
While the spacewalk preparations were under way, a Japanese astronaut and three cosmonauts conducted a variety of space research. Takuya Onishi tended to the mice being observed for the Mouse Epigenetics study. That experiment is researching altered gene expression and DNA changes in mice and their offspring living in space.
Flight controllers and the Expedition 48 crew are preparing for tonight’s International Docking Adapter extraction work and Friday morning’s installation spacewalk. The orbital residents are also continuing to load the SpaceX Dragon with gear and science for return to Earth.
Controllers on the ground checked the Canadian robotics systems they will use to remove the International Docking Adapter from the rear of the SpaceX Dragon tonight. The new adapter will be extracted with the Canadarm2 then maneuvered to a point about three feet away from its installation point. It will then be installed on the Pressurized Mating Adapter-2 which is attached to the forward end of the Harmony module.
The final and intricate installation work will be done during a 6.5 hour spacewalk scheduled to begin Friday at 8:05 a.m. EDT with astronauts Jeff Williams and Kate Rubins . The new adapter, the first of two, will enable new Commercial Crew vehicles being developed by Boeing and SpaceX to dock at the International Space Station in the future.
In the meantime, the SpaceX Dragon cargo craft is still being loaded with gear ahead of its return to Earth on Aug. 26. Rubins spent the morning packing Dragon with research samples and used hardware for analysis back on Earth.
A pair of astronauts tried on U.S. spacesuits this morning ahead of a spacewalk next week. Afterward, the crew explored heart cells, fluid pressure in the head and the eyes and the composition of meteors.
NASA astronauts Jeff Williams and Kate Rubins are due to work outside the International Space Station on Aug. 19 for 6.5 hours. The duo tried on the spacesuits today they will wear during the spacewalk to complete the installation of the first of two International Docking Adapters to the Harmony module. Commercial Crew vehicles are being developed by Boeing and SpaceX that will dock to the new adapters in the future.
Rubins then moved on to observing heart cells with a specialized microscope. The heart cells are derived from stem cells that were manufactured from human skin cells.
Williams joined cosmonaut Anatoly Ivanishin for ultrasound scans and vision checks. That work was part of the Fluid Shifts study that is exploring how the lack of gravity influences head pressure and eye shape possibly affecting an astronaut’s vision.
Japanese astronaut Takuya Onishi replaced a hard drive on a laptop computer that collects data on the composition of meteors entering Earth’s atmosphere. Cosmonauts Oleg Skripochka and Alexey Ovchinin participated in a study that seeks to improve the ability of a crew member to pilot a spacecraft.
The International Space Station will get an orbital boost tonight to get ready for upcoming Soyuz crew missions. On the ground, three new crew members are preparing for their Friday departure to the launch site at the Baikonur Cosmodrome in Kazakhstan.
The orbiting Expedition 44 trio, with Commander Gennady Padalka and One-Year crew members Scott Kelly and Mikhail Kornienko, is looking forward to expanding to three new crew members. Soyuz Commander Oleg Kononenko and Flight Engineers Kjell Lindgren and Kimiya Yui will take a six-hour ride July 22 in the Soyuz TMA-17M spacecraft for a five month stay in space.
On the station, Kelly is getting Japan’s Kibo airlock ready for next week’s deployment of 16 Cubesats over four days. Kornienko continued moving supplies from the new ISS Progress 60 space freighter. Padalka worked on the Vozdukh, a Russian carbon dioxide removal system, the Zvezda service module. All the crew members then practiced emergency evacuation procedures.