The space rush [Dataflow]

Rocket and spacecraft company SpaceX recently announced its plans to open a spaceport in Texas, while Virgin Galactic is making noises that it expects to conduct a flight into space from the Mojave Air & Space Port in California in the next several months. But these aren't the only places where people are hoping to grab a piece of the nascent commercial space age. The United States' Federal Aviation Administration has already licensed a number of other spaceports, with several more locations also expressing interest in getting licensed. Just how big the commercial space market would have to be to support all these launch sites is an open question.