If this doesn't give you goosebumps, your skin is made of mahogany. It's International Space Station Commander Chris Hadfield enlisting the help of his crew to film this cover version of David Bowie's 1969 rock classic Space Oddity.
It's poignant as hell, and captures the isolation and awesome loneliness of life in spact that was so affecting about the original. The Canadian astronaut has come to the end of five months on the station, and has been documenting his stay on social media. He returned to earth today.