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 Mobile Australia of Optus. A long-term licensing agreement was established for the business to continue trading under the Virgin brand. Optus merged Virgin Mobile with its subsidiaries SIMPlus and M8 in April 2006. Virgin Mobile uses the Optus Network for all of its Australian-based services. This network reaches 98.5% of people in Australia and operates on the following frequencies: Virgin Mobile sell a number of telecommunications products: They offer a range of mobile phones with their plans, including products from Apple, Samsung, Sony and others. They also offer SIM-only services. They sell their products online, over the phone and throughout 35 branded