America's greatest idea factory isn't Bell Labs, Silicon Valley, or MIT's Media Lab. It's the secretive, Pentagon-led agency known as DARPA. Founded by Eisenhower in response to Sputnik and the Soviet space program, DARPA (Defense Advanced Research Projects Agency) mixes military officers with sneaker-wearing scientists, seeking paradigm-shifting ideas in varied fields--from energy, robotics, and rockets to doctorless operating rooms, driverless cars, and planes that can fly halfway around the world in just a few hours.

Michael Belfiore was given unpre-cedented access to write this first-ever popular account of DARPA. "The Department of Mad Scientists" contains material that has barely been reported in the general media--in fact, only 2 percent of Americans know much of anything about the agency. But as this fascinating read demonstrates, DARPA isn't so much frightening as it is inspiring--it is our future.

On June 21, 2004, "SpaceShipOne," built by aircraft designer Burt Rutan, entered space and ushered in the commercial space age. Investment capital began to pour into the new commercial spaceflight industry. Richard Branson's "VirginGalactic" will begin ferrying space tourists out of the atmosphere in 2010. Las Vegas hotelier Robert Bigelow is developing the world's first commercial space station (i.e., space hotel). These space entrepreneurs, including Microsoft cofounder Paul Allen and Amazon.com founder Jeff Bezos, now see space as the next big thing.

In "Rocketeers," Michael Belfiore goes behind the scenes of this nascent industry, capturing its wild-west, anything-goes flavor. Likening his research to "hanging out in the Wright brothers' barn," Belfiore offers an inspiring and entertaining look at the people who are not afraid to make their bold dreams a reality.