Kvant-1 (Russian: Квант-1; English: Quantum-I/1) (37KE) was the second module of the Soviet space station Mir. It was the first addition to the Mir base block and contained scientific instruments for astrophysical observations and materials science experiments.
Kvant-1 conducted research into the physics of active galaxies, quasars and neutron stars. The module also supported biotechnology experiments in anti-viral preparations and fractions. Originally planned to dock with the Salyut 7 space station, Kvant-1 was the first, experimental version of a planned series of '37K' type modules with jettisonable TKS-E type propulsion module scheduled to be launched to Mir and on the Soviet Buran space shuttle. #space_station_MIR