Happy Birthday International Space Station! It's been exactly 20 years since the first part of the ISS was sent into space. | BBC World Service

222K views · 12K reactions | Airplanes fly about 600mph, but the International Space Station orbits Earth at 17,500mph and looks like a very bright star moving across the sky. Did you know that you can track when the station will pass overhead? Find out when and where to look up: https://go.nasa.gov/2qWbNDm #SpaceStation20th | NASA - National Aeronautics and Space Administration | Facebook