It’ll be one giant leap for womankind.

Two of NASA’s veteran female astronauts will venture forth from the International Space Station on Friday and become history’s first all-women spacewalk team.

Flight Engineers Jessica Meir, left, and Christina Koch will wear 300-pound spacesuits and tote equipment that — despite resembling Captain Kirk’s phaser rifle — is actually tools they’ll use to fix a failed power regulator on the station’s exterior.

They will leave the station’s Quest airlock at 7:50 a.m. Eastern time and make their way to the far side of the station for the five-and-a-half hour repair, NASA reported.

The device they’re fixing “regulates the charge to the batteries that collect and distribute solar power” to the station, NASA explains; it had failed last weekend.

NASA had previously planned a two-woman spacewalk for earlier this year, but it was canceled because it didn’t have two spacesuits in the right size, The Wall Street Journal noted.

Koch would have been joined for that walk by astronaut Anne McClain, who has since returned to Earth.

She was replaced on board in September by Meir. The two are the only women on the space station.

“We don’t even really think about it on a daily basis,” Meir said of the milestone during a NASA media event broadcast from the station.

“It’s just normal. We’re part of the team. It’s really nice to see how far we’ve come.”