US EVA-63

NASA astronauts Jessica Meir and Christina Koch will perform a 6-hours long extravehicular activity (EVA) to complete replacement of batteries on the P6 truss. Meir and Koch are both aboard the International Space Station for the first time as Expedition 61 flight engineers, Koch since March 2019 and Meir since September 2019. The goal of this EVA is to complete the replacement of 12 old nickel-hydrogen batteries on the P6 truss with 6 brand new lithium-ion batteries, which are much more efficient and were brought to the Station aboard a japanese HTV cargo spacecraft. This will be the second EVA of 2020 and the third all-female EVA in the history of human spaceflight.