The Trippy Physics of Bubbles in Microgravity

Don Pettit, an astronaut on board the International Space Station, demonstrates how to create bubbles within bubbles.

Don Pettit, an astronaut on board the International Space Station, continues his ongoing educational video series with a demonstration of antibubbles. In orbit, 250 miles above the surface of the Earth, the space station experiences an almost zero-gravity environment called microgravity. Sans gravity, Pettit can fill a floating sphere of water with air, and then more water, creating a veritable Russian nesting doll of bubbles. The educational series, Science off the Sphere, is a collaboration with the American Physical Society.

An image of antibubbles of air in soapy water, courtesy of Wikipedia:

For more videos by NASA, visit http://www.nasa.gov/.