A handout photo made available by NASA shows Expedition 61 Flight Engineers, NASA spacewalkers Christina Koch (foreground, suit with red stripe) and Jessica Meir (suit with no stripes).
The mission was to replace a failed battery charge-discharge unit with a new one during a 7-hour, 17-minute spacewalk, outside the International Space Station (ISS), 18 October 2019 (issued 21 October 2019). Christina Koch and Jessica Meir of NASA concluded their spacewalk, the first with only women.
Via EPA-EFE/NASA TV HANDOUT
A handout photo made available by NASA shows NASA astronauts Jessica Meir (L) and Christina Koch (R) preparing to leave the hatch of the International Space Station (ISS) and begin the historic first-ever all-female spacewalk, 18 October 2019 (issued 21 October 2019). The astronauts replaced a faulty battery charge discharge unit (BCDU) that failed to activate following the 11 October installation of new lithium ion batteries on the space station’s exterior structure. The BCDUs regulate the amount of charge put into the batteries that collect energy from the station’s solar arrays to power station systems during periods when the station orbits during nighttime passes around Earth. Though the BCDU failure has not impacted station operations or crew safety, it does prevent the new batteries from providing increased station power. EPA-EFE/NASA HANDOUTÂ
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