The upper stage of a rocket used to launch a lunar lander mission now heading towards the moon, and it's going to crash there at 5,400 miles per hour. Earth used to look pretty nice, until all the trash arrived. But now, having already strewn plastic waste across land and sea, humanity has turned its gaze to the stars. Specifically, the U.S. and China are in a race to put astronauts back on the Moo... [3470 chars]