I have on occasion, accidentally left the cosmoteer title screen open for extremely long periods of time. I have noticed that for some reason, the planet in the background seems to get bored, and start to leave. All sarcasm aside though, the planet seems to slowly move over time, to the right, and a little up. Unless this is a hidden Easter egg or something, I doubt this should be happening.
Normal:
4 Hours:
7 Hours: