NASA / SCIENCE PHOTO LIBRARY NASA / SCIENCE PHOTO LIBRARY
Water bubble on the International Space Station (ISS). The face of NASA astronaut Leroy Chiao is inverted in the water, which has formed a bubble in the weightless surroundings. The ISS has been in orbit since 2000. It is in a permanent state of freefall around the Earth, so objects onboard are weightless. This was taken during ISS mission 10 (13/10/2004-24/04/2005).
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