- How did the Apollo-Soyuz docking protocols pave the way for the International Space Station?
International Space Station
The orbital laboratory built through international cooperation.
- What was Zarya's function as the first module of the International Space Station, before any other module arrived?
- How did the American Unity node connect to Zarya, and when did astronauts first pass between the two modules?
- How many nations and assembly flights were eventually involved in building out the International Space Station from these first two modules?
- Who made up the Expedition 1 crew that first occupied the ISS?
- What condition was the space station in when Expedition 1 arrived in November 2000?
- How long has the International Space Station been continuously occupied since Expedition 1?
- How did American astronauts reach the International Space Station after the shuttle program ended?
- When did continuous human habitation of the ISS begin, and how many astronauts and experiments has the station hosted since?
- What risks has the ISS survived over its 25 years of continuous operation?
- How many nations were involved in assembling the ISS, and what does its scheduled deorbit mean for the program's future?