Machine / system · Secret Dawn - Among the Stars
TKS
Heavy transport/return craft; ancestor of the station modules
TKS in the timeline
1981 TKS: the heavy transport that outlived Almaz
Though the crewed Almaz programme is cancelled, Chelomei's TKS transport spacecraft and its modules become the basis of the add-on modules for Salyut 7, Mir and eventually the ISS.
1998-11-20 ISS: Zarya, the first module
The Russian-built Zarya module, a direct descendant of the TKS/Almaz lineage, becomes the first element of the International Space Station, the Soviet station heritage reborn.