The International Space Station orbits the earth about 200 miles away in space. Always traveling at 17,500 miles per hour, it takes ISS one-and-a-half hours to travel one full orbit around Earth. There are always astronauts living in ISS, performing experiments and doing things to increase human knowledge about space. NASA and other national space agencies are involved with ISS, which they almost scrapped some time back. Nowadays, NASA contracts with various American, commercial enterprises rather than do all of... Read more