Where ocean meets sky—new NASA radar gets a tryout

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Ocean currents and winds form an endless feedback loop: winds blow over the ocean’s surface, creating currents there. At the same time, the hot or cold water in these currents influences the wind’s speed. This delicate dance is crucial to understanding Earth’s changing climate. Gathering data on this interaction can also help people track oil […]

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June 2, 2017 at 12:36AM

The premature quest for AI-powered facial recognition to simplify screening

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In 2009, 22-year-old student Nicholas George was going through a checkpoint at Philadelphia International Airport when Transportation Security Administration agents pulled him aside. A search of his luggage turned up flashcards with English and Arabic words. George was handcuffed, detained for hours, and questioned by the FBI. George had been singled out by behavior-detection officers—people…

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June 2, 2017 at 12:15AM

Enormous Stratolaunch aircraft rolled out for first time

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Billionaire Paul G. Allen’s Stratolaunch, a massive aircraft designed to launch rockets into space from high altitude, has been rolled out of its hangar for the first time in preparation for testing. Here are things to know about the program that has been underway since 2011: ——— GIGANTIC The Stratolaunch aircraft is enormous, with a […]

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June 2, 2017 at 12:04AM

Water-splitting technologies could usher in hydrogen economy

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Researchers at Penn State University have developed a new, cheaper and more efficient way to split water molecule and produce pure hydrogen fuel. Hydrogen has been promised as the remedy for the world’s addiction to fossil fuels. But the fuel isn’t cheap or easy to make — at least not cheap enough to make it […]

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June 1, 2017 at 11:57PM