SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Harvesting cotton which has been sprouted in space, Russia, 1986. Scientists are interested in the ability of plants to grow in a weightless environment. Not only does the absence of gravity help to illuminate some of their biological processes, but knowledge of growing crops in space will also be important if people are to live for a long time without assistance in space.
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