The International Space Station is an intergovernmental collaboration with the goal of conducting scientific experiments in microgravity, observing Earth and space, and profiling astronauts during long-term stays in confined environments to aid research for potential Mars expeditions. The three most recent inhabitants of the ISS were Russian Roman Romanenko, Belgian Frank De Winne, and Canadian Bob Thirsk.

1. Tom Jacobs & Lennert Jans International Space Station

2. The International Space Station

3. Goal Intergovernmental collaboration Experiments Earth & Space observation

4. Why ISS? Scientific experimenting in microgravity Psychological profiling of astronauts in confined environments Space observation Longer stay in space for astronauts Research for potential Mars-expeditions Astronauts have more time and more comfort e.g. to perform experiments

5. Who? 3 most recent inhabitants (picture) : Russian Roman Romanenko Belgian Frank De Winne Canadian Bob Thirsk And 3 others.