Not long ago, space seemed the almost exclusive purview of governments†specifically those of the United States and the Soviet Union. Now, with private rocket companies building relatively inexpensive launch vehicles and entrepreneurs hawking the notion of sending tourists into space, anyone with a grand vision, a feasible plan and a big bankroll can take a shot at the great beyond. Here’s our map of this brave new world. Influence is measured by distance from the Sun—the closer a group is, the more important it is.