55K views · 4.2K reactions | Former astronaut Mark Kelly talks about next week's conclusion of the One-Year Mission of his identical twin brother, NASA Astronaut Scott Kelly. The brothers participated in the Twins experiment to compare Scott's body after a year in space with his Earth-bound brother Mark’s. | International Space Station | Facebook

Live HD Earth viewing from the International Space Station! Go full screen, sit back, watch and enjoy our home planet. Live views: http://go.nasa.gov/2oBrDS2 | NASA - National Aeronautics and Space Administration

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/2IzdezV | NASA - National Aeronautics and Space Administration