The Canadian astronaut Chris Hadfield recorded this song during his stay at the International Space Station in 2013, using a guitar that stays on the station. The female singer/songwriter Emm Gryner, who was part of Bowie's live band in 1999-2000, put the song together, adding additional tracks and incorporating space station sounds that Hadfield had posted to his Soundclound account. A video was compiled using footage of Hadfield performing the song in space, complete with shots of planet Earth, his floating acoustic guitar, and a weightless Hadfield. The sublime compilation was posted
on May 12, 2013; it quickly racked up millions of views on YouTube and got the attention of Bowie, who posted about it on his social media accounts, calling it "quite possibly the most poignant version of the song ever created."
Hadfield changed a few of the lyrics - he left out the part where Major Tom loses contact and drifts away.
Releasing a cover song recorded in space poses myriad legal challenges, since jurisdiction is unclear. The original agreement was for one year, so the video was removed on May 13, 2014. By this time, Hadfield was back on Earth and worked to negotiate a new deal with the song's publishers. In November 2014, an agreement was reached and the video went back up.