This gorgeous video, with 22 million views, is a revised version of David Bowie's Space Oddity, recorded by Commander Chris Hadfield on board the International Space Station.
Bowie gave Hadfield a year to keep the video up, and today it comes down. So check it out before you never get to see a real life Space Oddity again.
But maybe not! Redditors have already been working to create a mirror for the video, ripping it from YouTube and saving it here.