Current events for
|Events in space history for 04/21:|
- Soviet Progress 29 space freighter was launched and sent to dock with the Mir-Kvant-Soyuz TM-2 space station assemblage. The combined assemblage was 115 ft. long and had a mass of 50 metric tons (1987).
- Soviets fail in an attempt to dock with Salyut 7/Cosmos 1443 space station (1983).