Kosmos 936 or Bion 4 (Бион 4, Космос 936) was a Bion satellite.[4] The mission involved nine countries in a series of biomedical research experiments. The experiments were primarily follow-ups to the Bion 3 (Kosmos 782) flight. Scientists from the Bulgaria, Czechoslovakia, East Germany, France, Hungary, Poland, Romania, the United States and the Soviet Union conducted experiments in physics and biology on the mission.[1]
Spacecraft
The spacecraft was based on the Zenitreconnaissance satellite and launches began in 1973 with primary emphasis on the problems of radiation effects on human beings. Launches in the program included Kosmos 110, 605, 670, 782, plus Nauka modules flown on Zenit-2M reconnaissance satellites. 90 kg of equipment could be contained in the external Nauka module.[1]
The mission was to conduct various biological studies, continuing the Bion 3 mission experiments. He had two centrifuges on board to put some specimens in an artificial gravity environment. An attempt was made to differentiate, using rats, between the effects caused by space flight itself from those caused by stress. The effects of flight on muscle and bone, on red cell survival, and on lipid and carbohydratemetabolism were also studied, and an experiment with rats on the effects of space radiation on the retina was conducted.
One of the instruments (without a biological part) studied the physical parameters of the components of space radiation. Fruit flies were used in genetics and aging studies. A group of rats of the Rattus norvegicus species were sent, with an average weight of 215 g (7.6 oz) at launch and 62 days of age. Twenty of the rats experienced microgravity and the other ten were subjected to the artificial gravity of the centrifuge.
^"Bion". Archived from the original on 20 August 2002. Retrieved 28 May 2016.{{cite web}}: CS1 maint: bot: original URL status unknown (link) Encyclopedia Astronautica Retrieved 16 January 2021
^"Cosmos 936". NASA ARC. 3 August 1977. Archived from the original on 15 February 2013. Retrieved 16 January 2021. This article incorporates text from this source, which is in the public domain.
Bibliography
Kozlov, D. I. (1996), Mashnostroenie, ed., Konstruirovanie avtomaticheskikh kosmicheskikh apparatov, Moscow, ISBN
Melnik, T. G. (1997), Nauka, ed., Voenno-Kosmicheskiy Sili, Moscow, ISBN
Payloads are separated by bullets ( · ), launches by pipes ( | ). Crewed flights are indicated in underline. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in (brackets).
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