A bonus Celestial Bodies track released simultaneously with Mars on October 1, 2012.
"Congratulations, you've successfully discovered the first Celestial Bodies Hidden Broadcast. Expect more in the coming months. Stay alert.
To celebrate the completion of the first half of Celestial Bodies, here's a bonus track demo of "Envy", originally from The Moon. This faster-paced demo was recorded sometime around April 2012, before Celestial Bodies was even launched. It was written even earlier, about a year and a half to two years ago. Two versions were recorded during The Moon's sessions: the slower one (which got used), and a faster one similar to this.