Eager to help Planetary Resources look for asteroids and bring humanity that much closer to space mining? Well, it's time to get cracking. The company has launched Asteroid Zoo, a site that relies on crowdsourcing (i.e. you) to both find rocks in the void and train computers to do the same. It's pretty straightforward -- all you do is look at image sets from the Catalina Sky Survey and mark any asteroids or artifacts.