While aboard the International Space Station, astronaut and chemist Dr. Don Pettit conducted physics demos that are out of this world. From electric didgeridoos to microgravity goo, Don showed us what's possible when you're over 200 miles above the Earth.



You can watch 14 episodes of the Science off the Sphere videos below — just click the individual photo for each episode. You can also watch them all back-to-back on our Youtube playlist.



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