NASA Logo, National Aeronautics and Space Administration
NASA Space Science Data Coordinated Archive Header

Bion 4



Bion 4 (Cosmos 936) involved nine countries, including the United States, in a series of biomedical research. The experiments were primarily follow-ups to the Bion 3 (Cosmos 782) flight. The mission ended after 19.5 days.

The spacecraft was based on the Zenit reconnaissance satellite and launches began in 1973 with primary emphasis on the problems of radiation effects on human beings. Launches in the program included Cosmos 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.

Alternate Names

  • 10172
  • Biocosmos 4
  • Bion4
  • Cosmos 936

Facts in Brief

Launch Date: 1977-08-03
Launch Vehicle: Soyuz
Launch Site: Plesetsk, U.S.S.R
Mass: 4000 kg

Funding Agencies

  • Institute of Biomedical Problems, Moscow (U.S.S.R)
  • National Aeronautics and Space Administration (United States)


  • Life Science

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

[] NASA Logo -