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:
Virgin Megastores (U.S.) had a Customer Loyalty Program named 'Virgin V.I.P.' The Program used a read/write 'GraphiCard'. Every time a member purchase is made, the Graphicard was swiped through the POS Graphicard Terminal. Members points were instantly updated on the face of the card. The website shared the loyalty program with the U.S. stores. Virgin Megastores U.S. website is VirginMega.com. In 2002 this website became co-branded with Amazon.com, and was powered by Amazon. Later in 2002 VirginMega.co.jp, the Japanese equivalent, followed suit. In 2007 the website was again changed, when Virgin Megastores partnered with Baker & Taylor. On 31 May 2009 VirginMega.com