Between the routeways of Mars and Jupiter lies a vast region bulging with rocky remnants from the early Solar System. Known as the Asteroid Belt, this circumstellar slice is n't a chaotic peril zone as Hollywood may portray, but a fascinating window into the history. These ancient jewels — millions of them ranging in size from bitsy pebbles to stunt earth- sized bodies are considered planetary leavings that noway coalesced into a earth due to the immense gravitational influence of Jupiter.