LOUISVILLE, Colo. — NASA will postpone the remainder of an ongoing series of spacewalks at the International Space Station to upgrade batteries for its power system after a related component malfunctioned and needs to be replaced.
NASA announced Oct. 15 that the third in a series of battery replacement spacewalks that had been scheduled for Oct. 16, featuring NASA astronauts Jessica Meir and Andrew Morgan, had been postponed after a device called a battery charge/discharge unit, or BCDU, failed on the station over the weekend. The device is used to charge the batteries as part of the station’s power supply.
Instead, NASA will carry out a spacewalk either Oct. 17 or 18 to replace the failed BCDU unit with a spare on the station. Meir and Christina Koch will carry out that spacewalk. The two had been scheduled to perform an Oct. 21 spacewalk to replace batteries, the first all-female NASA spacewalk.
In an interview here during a media event for Sierra Nevada Corporation’s Dream Chaser cargo vehicle, Kirk Shireman, NASA ISS program manager, said the BCDU units were turned off before an Oct. 11 spacewalk to replace batteries, but otherwise not touched. Three such units were switched off for ...