NASA astronauts Suni Williams and Butch Wilmore completed a spacewalk Thursday while awaiting their delayed return to Earth. Williams set a new spacewalking record for female astronauts during the mission.

President Donald Trump took to social media this week to announce he had directed SpaceX CEO Elon Musk to “go get” two NASA astronauts who have been on a protracted stay at the International Space Station after their Boeing Starliner mission, which launched in June and was expected to last about eight days, ran into multiple technical issues.

While Suni Williams and Butch Wilmore’s situation is unusual, their return trip will be pretty routine, as they were already slated to fly home on a SpaceX capsule as part of a scheduled crew rotation.