Human flight took a significant step forward today as the privately built SpaceShipOne flew into suborbital space for the second time in five days, securing the $10 million Ansari X Prize. With pilot Brian Binnie at the controls, SpaceShipOne rocketed to an unofficial height of 368,000 feet, setting a new altitude record for the craft and proving that private industry can build a viable vehicle for sending paying passengers to space. “This is a milestone for humanity,” said John Spencer, president of the Space Tourism Society in Los Angeles.