Researched
Space stations
From Salyut 1 (1971) to the ISS (crewed continuously since November 2000), stations taught humans to live and work in orbit for months.
Open in the interactive tree →Skylab (1973), Mir (1986-2001) and the International Space Station, built from 1998 by five space agencies, allow long-term research on biology, materials and medicine in weightlessness. The ISS recycles most of its crew water. China's Tiangong has been crewed since 2021.
Prerequisites
- Photovoltaics1954The station's power comes from large solar array wings
- First human in space1961
- Moon landing1969
Unlocks
More in Space & Astronomy · Atomic & Space Age
- First satellite (Sputnik)1957
- Apollo Guidance Computer1961-1969
- First human in space1961
- Pulsars1967
- Moon landing1969
- Black Holes (Cygnus X-1)1971-72
- Deep-space probes (Voyager)1977
- Space Shuttle1981