Video: Change of command aboard International Space Station

Two veteran spacemen embarking on a marathon yearlong mission in orbit must first sprint through a busy workday Friday — suiting up for liftoff, climbing into their Soyuz spaceship, then flying to the International Space Station.

Two Russian cosmonauts used the International Space Station’s Poisk docking compartment as an airlock for the first time Wednesday in a six-hour 48-minute spacewalk to begin preparing the nearly identical Pirs module for removal next year. A new laboratory module will be parked in its place later.

Crew members aboard the International Space Station are investigating a tiny pressure leak on the Russian side of the orbiting outpost. The crew traced the leak to a small hole on the Soyuz MS-09 spacecraft, which ferried a three-person crew to the station in June. Mission control is examining options to repair the damage, and NASA says the crew is not in danger.