Friends that spacewalk together, stay together. This morning, best friends Christina Koch and Jessica Meir are taking part in the very first all-female spacewalk in history. The NASA astronauts have left the International Space Station for a 6.5-hour spacewalk by themselves, which is a big deal since women have never gone on these walks without men, and of the 227 people who have done spacewalks, only 14 have been female. “What we’re doing now shows all of the work that went in for the decades prior, all of the women that worked to get us where we are today,” Jessica said in a statement. Who run the galaxy? Girls.

Watch Live: nasa.gov/live