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Chris Hadfield entertained the world during his last trip to the International Space Station with his series of YouTube videos showing daily life in space.

The Canadian astronaut will be on Square Off today to talk about his career among the stars and how working on the ISS shaped his perceptions of life on earth.

“I’ve had the chance to go around the world almost 2,600 times, and to see the entire world, not through any sort of filter, but directly pouring in through my eyes.”

Watch the entire interview this afternoon at 5:30 on Square Off.