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Published online 17 September 2007 | Nature | doi:10.1038/news070917-1

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Fish in space help studies of balance disorders

Scientists seek answers to how the inner ears develop in microgravity.

Twenty-six baby fish are now orbiting Earth aboard an unmanned Russian spacecraft, in a long-delayed experiment that researchers hope will lead to a better understanding of inner-ear balance mechanisms in humans.

The cichlid fish (Oreochromis mossambicus) blasted off Friday morning (11:00 GMT) from Baikonur Cosmodrome in Kazakhstan, in a Foton-M3 craft atop a Soyuz-U rocket, as part of a package of life and physical science experiments organized by the European Space Agency.

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