• The future of Navy spy tech

    The future of Navy spy tech

    A surveillance drone that covers 2 million square miles at a time means that around-the-clock maritime surveillance isn't far off.

  • X-47B: The Navy's milestone drone

    X-47B: The Navy's milestone drone

    Unmanned aircraft reached a major turning point this week.

  • Has the fuel cell car's time finally come?

    Has the fuel cell car's time finally come?

    Hydrogen is the fuel of the future -- and always will be. So goes a long-running joke in engineering circles. The quest to build a car powered by one of the most abundant elements on earth dates back to 1966, when GM created the first fuel-cell vehicle, the futuristically named and wildly impractical Chevrolet Electrovan. (Hydrogen tanks and fuel cells to convert the gas into electricity filled the entire rear section of the van.) In the decades since, the major automakers have spent billions in a quest to perfect the hydrogen car -- with little to show for their R&D dollars. Though hydrogen fuel cells have become much smaller, cheaper, and infinitely more efficient over the years, the technology has remained stuck on a road to nowhere. Fewer than 500 fuel-cell cars were sold globally last year, according to Navigant Research.

  • 5 big rumors about Apple's September event

    5 big rumors about Apple's September event

    A highly anticipated fall announcement from Apple could bring some of the iPhone upgrades that fans and investors have been calling for.

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