Space architecture of space and a space transportation infrastructure can be accelerated. Virgin Galactic has indicated plans for an orbital craft, SpaceShipThree. The demand for space tourism is one without bound. It is not difficult to imagine lunar parks or cruises by Venus. Another impetus to become a spacefaring species is planetary defense. The classic space mission is the Earth-colliding asteroid interception mission. Using nuclear detonations to split or deflect the asteroid is risky at best. Such a tactic could actually make the problem worse by increasing the amount of asteroid fragments that do end up hitting the Earth. Robert Zubrin writes:
San Lazaro Tourism and Business Park San Lazaro Tourism and Business Park San Lazaro Tourism and Business Park is the marketing name given to the multiple use site under development by the Manila Jockey Club Investments Corp. in Manila, Philippines. It takes its name from the old San Lazaro Hippodrome, a horse racetrack that stood on the site from 1912 to 2003. Currently, the site includes the SM City San Lazaro shopping center, the two-tower Vertex office complex, the three-tower Celadon Park and Celadon Residences, and the five-tower Avida Towers San Lazaro condominium complex. It has been declared a tourism economic zone with information technology component