By Rachel Treisman
The first all-female spacewalk in NASA’s 61-year history is finally happening and will even take place a few days ahead of schedule.
Astronauts Christina Koch and Jessica Meir, who were initially supposed to venture beyond the International Space Station on Oct. 21, are now slated to make their historic excursion this Friday. NASA announced the scheduling and other changes this week in light of issues with the space station’s battery charge-discharge unit, which Koch and Meir will replace. The International Space Station’s Twitter account tweeted Tuesday evening that the spacewalk will take place “no earlier than Friday,” updating NASA’s earlier announcement that it would happen either Thursday or Friday morning.
“We do anticipate that will stick,” NASA spokesperson Stephanie Schierholz told NPR in an email.
Friday’s spacewalk is set to begin at 7:50 a.m. EDT and last about 5 1/2 hours, according to NASA. The two astronauts will replace the faulty power regulator, which has been in operation since 2000 and failed to activate after new lithium-ion batteries were installed on the space station last week. NASA said the unit failure did not pose risks to any of the station’s operations, crew members, laboratory experiments or overall power supply. Still, the faulty unit prevents the new lithium-ion batteries from providing additional power to the station.
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