NASA astronaut and superhero Scott Kelly broke another record this week by spending more consecutive days in space than any other American.

Kelly also completed his first spacewalk this week, doing maintenance on the outside of the International Space Station for seven hours.

Kelly is just two-thirds of the way through his current year-long mission. He’s scheduled back on Earth on March 2.

When he’s not preparing for space walks, he keeps busy by injecting himself with the flu shot, watching The Martian, playing with liquids in zero gravity, and taking insanely epic photos for his Twitter feed.

What a boss.

Photos via NASA/Victor Zelentsov