Secret Soviet-US space cooperations

[nevidimka]

I was wondering if there was ever secret coorperations between Soviet Union n US during the cold war days?. Much like Emergency life saving coop between the 2 giants in space? Durig the cold war only these 2 countries ever have the capability to go into space or have any presence in space. Could there have been undocumented request for help between them 2 when something went bad in space during each others mission?

Other than the Apollo-Soyuz docking or MIR-SHutle mission which were not emergency type mission, i've never heard of anything else.

nevidimka the topic does not fit in the military aviation forum. I am sorry we don't have separate forum for Space but we usually take it to the 'Defence Technology' forum. Hence I am moving it there.

- SABRE

[Chrom]

I was wondering if there was ever secret coorperations between Soviet Union n US during the cold war days?. Much like Emergency life saving coop between the 2 giants in space? Durig the cold war only these 2 countries ever have the capability to go into space or have any presence in space. Could there have been undocumented request for help between them 2 when something went bad in space during each others mission?

Other than the Apollo-Soyuz docking or MIR-SHutle mission which were not emergency type mission, i've never heard of anything else.

No. And might i add, it was impossible from the technical POV.

[icekid]

Except Apollo-Soyuz I doubt any

[nevidimka]

Sorry about that. I thought aviatio seem like the closest to the topic.

Anyways, its shocking to see there wasnt some form of coorporation between the 2 forced by emergency or such. Or perhaps they are still classified?

[kato]

The US and the Soviet Union traditionally used differently composed atmospheres in their capsules (pre-Shuttle-times). Traditionally, US capsules used a pure-oxygen atmosphere at one-third standard air pressure, while Soviet capsules use a virtual "normal" air composition (20% oxygen, 80% nitrogen) at normal pressure.
STS nowadays uses the same "normal" atmosphere as well btw.

Hence why a "adapter" had to be built specifically for the Apollo-Soyuz ASTP Mission, that thing didn't only invert the docking mechanism, but was also used to re-pressurize the atmosphere to an identical level in both capsules. The atmosphere created by the adapter in Apollo 19 was 50/50 oxygen/nitrogen, in Soyuz 19 it was "standard air" (20/80), both at the same pressure of two-thirds normal pressure.

Afaik, the first actual "emergency cooperation" was agreed upon with ISS - which uses (annually exchanged) Russian capsules as an emergency bailout system, and Progress space tugs for general supply.