Scaled Composites has recently said that they will attempt a suborbital launch on June 21. If they can launch again within a few weeks, they will
have won the coveted X-Prize:
www.msnbc.msn.com...
www.space.com...
Their system, called 'Tier One', employs a piggyback system: SpaceShipOne -- which vaguely resembles a cross between an X-1 and X-24 -- is lifted
into the air by an unusual jet aircraft called the White Knight.