Kosmos 782

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Kosmos 782 / Bion 3
Bion spacecraft original.jpg
On display at the Moscow Space Museum: The circular viewport was installed for display purposes.
Mission type Bioscience
Operator Institute of Biomedical Problems
COSPAR ID 1975-110A
SATCAT no. 8450
Mission duration 19.5 days
Spacecraft properties
Spacecraft type Bion
Manufacturer TsSKB
Launch mass 6,000 kilograms (13,000 lb)
Start of mission
Launch date 25 November 1975, 14:00:00 (1975-11-25UTC14Z) UTC
Rocket Soyuz-U
Launch site Plesetsk 43/3
End of mission
Landing date 15 December 1975, 04:48 (1975-12-15UTC04:49Z) UTC[1]
Landing site 52°17′N 64°11′E / 52.283°N 64.183°E / 52.283; 64.183 (Bion 3 spashdown)
Near Amankaragaj, Kazakh SSR, USSR
Orbital parameters
Reference system Geocentric
Regime Low Earth
Eccentricity 0.0112575[2]
Perigee 218 kilometres (135 mi)
Apogee 368 kilometres (229 mi)
Inclination 62.8059º
Period 90.5 minutes
RAAN 194.5624 degrees
Argument of perigee 106.9635 degrees
Mean anomaly 254.3835 degrees
Mean motion 15.93175436
Epoch 14 December 1975
Revolution no. 305

Bion 3 or Kosmos 782 (in Russian: Бион 3, Космос 782) was a Bion satellite. It carried 14 experiments prepared by seven countries in all, with participation from scientists in France, Czechoslovakia, Hungary, Poland, Romania, Soviet Union and the United States.


Launched from Plesetsk Cosmodrome on November 25, 1975, the biosatellite was recovered in Siberia on December 15 after 19.5 days. It included a centrifuge with revolving and fixed sections in which identical groups of animals, plants, and cells could be compared. The subject animals included white rats and tortoises. The effects of aging on fruit fly livers and plant tissues with grafted cancerous growths were also studied.

More than 20 different species were flown on the mission, including 25 unrestrained male Wistar rats, fruit flies (Drosophila melanogaster), carrot tissues, and 1,000 embryos of the fish Fundulus heteroclitus (a small shallow-water minnow). A U.S. radiation dosimeter experiment was also carried out without using biological materials. This was the only Bion mission where the United States provided some of the biological specimens.[3][4]

See also[edit]


  1. ^ Bion. Zarya. Retrieved 2016-06-10.
  2. ^ Chris Peat. COSMOS 782. Heavens Above. Retrieved 2016-06-18.
  3. ^ "4.G The Cosmos Biosatellite Program". Lis.arc.nasa.gov. Archived from the original on 2013-02-15. Retrieved 2014-03-12. 
  4. ^ "NASA - NSSDC - Spacecraft - Details". Nssdc.gsfc.nasa.gov. 2013-08-16. Retrieved 2014-03-12. 

External links[edit]