Virgin Galactic aims to offer commercial spaceflights to the public. It is scaling up the designs of SpaceShipOne to create SpaceShipTwo and WhiteKnightTwo vehicles that can safely carry six passengers and two pilots on suborbital flights. Virgin Galactic is working with Scaled Composites to develop and test the vehicles. It plans to begin commercial operations in 2010 out of Spaceport America in New Mexico once safety approvals are received. Challenges include proving the safety of the vehicles, gaining regulatory approvals, and building a sustainable business model to achieve their goal of making space accessible to thousands of people.