☆ biosatellite [bī΄ō sat′'l īt΄ ]n.a recoverable spacecraft designed for the study of the effects of cosmic radiation, weightlessness, etc. on terrestrial forms of life in space
* * *bi·o·sat·el·lite (bīʹō-săt'l-īt') n.An artificial, recoverable satellite that is designed to carry and support humans, animals, or other living organisms.
* * *▪ United States satelliteany of a series of three U.S. Earth-orbiting scientific satellites designed to study the biological effects of weightlessness (i.e., zero gravity), cosmic radiation, and the absence of the Earth's 24-hour day-night rhythm on several plants and animals ranging from a variety of microorganisms to a primate. Such space laboratories were equipped with telemetering equipment with which to monitor the condition of the specimens. Biosatellite 1 (1966) was not recovered. Biosatellite 2 (1967) was a complete success. It involved an assortment of biological experiments, including one concerned with mutations induced in the offspring of insects exposed to ionizing radiation in space. The flight of Biosatellite 3 (1969), scheduled to last 31 days, had to be cut short when the trained pigtail monkey that was aboard became ill.
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