Milestone Spacewalk on the Space Station on This Week @ NASA May 12, 2017
Spoiler
On May 12, Peggy Whitson and Jack Fischer conducted a spacewalk outside the International Space Station. This was the 200th spacewalk in support of station assembly and maintenance. Prior to the outing, during their pre-breathe activities in the airlock, the spacewalkers had to share Whitson's service and cooling umbilical (SCU), due to an issue with the SCU connected to Fischer's suit.