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.

Watch All of the Episodes

Episode 1: Dancing Droplets	Episode 2: Bistro-nauts
Episode 3: Thin Film Physics	Episode 4: Lenses and Vortices
Episode 5: Fun with Antibubbles	Episode 6: Earth in Infrared
Episode 7: Space Soundwaves	Episode 8: Goo!
Episode 9: Electric Didgeridoo	Episode 10: 1.21 Legowatts
Episode 11: Space Balloonacy	Episode 12: Spring Theory
Episode 13: Astro Puffs	Episode 14: Yo-Yos in Space