It was mere decades ago that the idea of space tourism — not just for astronauts and scientific research but for recreation — was the stuff of science fiction. Today, space travel for the average person is no longer a matter of "if" but "when," thanks to the imaginations of self-funded business magnates with an eye on the sky. Space is the tourism industry’s next frontier, and Travel + Leisure is on the pulse of the technological advancements made toward it becoming a reality. While astronomic prices may put it out of most people's reach for years to come, the rest of us can gaze up at other worlds from our backyards or chase dazzling celestial phenomena like the northern lights.