Eating and drinking on the International Space Station can prove to be interesting. Before they travel into space, astronauts meet with dieticians to discuss their meal preferences. They are given colored labels to designate their meals. The food is frozen, refrigerated or thermostablized, which means it is heat-pressurized, canned and stored at room temperature. Their eating utensils are magnetized so that they don't float away. This picture from NASA shows astronaut Clayton Anderson, STS-131 mission specialist, watching a water bubble float between him and the camera, showing his refracted image. He is on the middeck of space shuttle Discovery while is is docked with the ISS.