A few years ago, DARPA started work on a new experimental aircraft project called the XS-1, a vehicle designed to make launching satellites a faster, less expensive endeavor. Today, that project just took a huge leap forward: DARPA has announced that it's partnering with Boeing to build its next generation hypersonic space plane. Specifically, the aircraft manufacturer has been tapped to complete advanced design work on the XS-1 project, following up on the concept Boeing pitched to the… (www.engadget.com) 更多...
