In 1998, Russia launched the first module of the International Space Station (ISS), and on November 2, 2000, a Soyuz spacecraft carrying two Russian cosmonauts and one American astronaut arrived with the first crew, marking the space station's continuous occupancy since then. In its 24 years of service, the ISS has had over 270 people flown to the station from 22 countries. By most metrics, the IS...