International Space Station

NASA International Space Station Spacewalk Livestream | TIME

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• published: 24 Mar 2017
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Expedition 50 astronauts will conduct up to three spacewalks outside the International Space Station (ISS) in late March and early April to prepare for the future arrival of U.S. commercial crew spacecraft and upgrade station hardware. The first spacewalk remains on schedule for Friday, March 24. A second spacewalk has been rescheduled to Thursday, March 30, and a third spacewalk now is scheduled for Thursday, April 6. Subscribe to TIME ►► http://po.st/SubscribeTIME The first spacewalk will prepare the Pressurized Mating Adapter-3 (PMA-3) for installation of the second International Docking Adapter, which will accommodate commercial crew vehicle dockings. The PMA-3 provides the pressurized interface between the station modules and the docking adapter. Expedition 50 Commander Shane Kimbrough of NASA and Flight Engineer Thomas Pesquet of ESA (European Space Agency) will disconnect cables and electrical connections on PMA-3 to prepare for its robotic move Thursday, March 30. PMA-3 will be moved from the port side of the Tranquility module to the space-facing side of the Harmony module, where it will become home for the docking adapter, which will be delivered on a future flight of a SpaceX Dragon cargo spacecraft. The spacewalkers also will install on the starboard zero truss a new computer relay box equipped with advanced software for the adapter. The two spacewalkers will lubricate the latching end effector on the Special Purpose Dexterous Manipulator “extension” for the Canadarm2 robotic arm, inspect a radiator valve suspected of a small ammonia leak and replace cameras on the Japanese segment of the outpost. Radiators are used to shed excess heat that builds up through normal space station operation. The second spacewalk will feature Kimbrough and Flight Engineer Peggy Whitson of NASA reconnecting cables and electrical connections on PMA-3 at its new home on top Harmony. They also will install the second of the two upgraded computer relay boxes on the station’s truss and install shields and covers on PMA-3 and the now-vacant common berthing mechanism port on Tranquility. The final spacewalk will tentatively feature Whitson and Pesquet replacing an avionics box on the starboard truss called an ExPRESS Logistics Carrier, a storage platform. The box houses electrical and command and data routing equipment for the science experiments and replacement hardware stored outside of the station. The new avionics box is scheduled to launch on the upcoming Orbital ATK Cygnus cargo spacecraft mission. This will be the 198th, 199th and 200th spacewalks in support of space station assembly and maintenance. Kimbrough’s two spacewalks will be the fifth and sixth of his career. Whitson will be making the eighth and ninth spacewalks of her career – more than any other female astronaut. Pesquet will undertake the second and third spacewalks in his career. Get closer to the world of entertainment and celebrity news as TIME gives you access and insight on the people who make what you watch, read and share. https://www.youtube.com/playlist?list=PL2EFFA5DB900C633F Money helps you learn how to spend and invest your money. Find advice and guidance you can count on from how to negotiate, how to save and everything in between. https://www.youtube.com/playlist?list=PLYOGLpQQfhNKdqS_Wccs94rMHiajrRr4W Find out more about the latest developments in science and technology as TIME’s access brings you to the ideas and people changing our world. https://www.youtube.com/playlist?list=PLYOGLpQQfhNIzsgcwqhT6ctKOfHfyuaL3 Let TIME show you everything you need to know about drones, autonomous cars, smart devices and the latest inventions which are shaping industries and our way of living https://www.youtube.com/playlist?list=PL2862F811BE8F5623 Stay up to date on breaking news from around the world through TIME’s trusted reporting, insight and access https://www.youtube.com/playlist?list=PLYOGLpQQfhNJeIsW3A2d5Bs22Wc3PHma6 CONNECT WITH TIME Web: http://time.com/ Twitter: https://twitter.com/TIME Facebook: https://www.facebook.com/time Google+: https://plus.google.com/+TIME/videos Instagram: https://www.instagram.com/time/?hl=en Magazine: http://time.com/magazine/ Newsletter: time.com/newsletter ABOUT TIME TIME brings unparalleled insight, access and authority to the news. A 24/7 news publication with nearly a century of experience, TIME’s coverage shapes how we understand our world. Subscribe for daily news, interviews, science, technology, politics, health, entertainment, and business updates, as well as exclusive videos from TIME’s Person of the Year, TIME 100 and more created by TIME’s acclaimed writers, producers and editors. NASA International Space Station Spacewalk Livestream | TIME https://www.youtube.com/user/TimeMagazine