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Originally Posted by Hektore
Cool to watch, but I'm not really sure why any money need to be spent on this. I hope that it wasn't the whole point of his trip. The sphere wasn't free, it was 'tethered'. Also, wouldn't a large free sphere of water in a space station be a bit of a liability?
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Small experiments done in space that seem inconsequential can actually reveal quite a bit about the world. I remember seeing a clip similar to this one on television dealing with small particles and how they act in a zero-g environment. It showed that particles in space don't just float around, but that they clump together very quickly. This gave scientists quite a bit of insight into how the solar system was formed from a free floating gas/particle cloud.