Two NASA astronauts plan to participate in a 6-hour, 35-minute spacewalk Thursday to upgrade the International Space Station's power generation capabilities and relocate a communications antenna.

McClain, an Army colonel and helicopter pilot, should have taken part in the first all-female spacewalk in 2019, but there weren’t enough medium-size suits. The first women-only spacewalk was by Christina Koch and Jessica Meir. The latest was the fifth all-female spacewalk in 60 years of spacewalking.

Two astronauts will exit the International Space Station for NASA's 93rd spacewalk.Astronauts Anne McClain and Nichole Ayers will relocate a space station communications antenna and install a mounting bracket before installing additional International Space Station Rollout Solar Arrays,