A Minuteman III intercontinental ballistic missile can hit almost any target on earth ... but only if it flies through Russian airspace. This unarmed test version was launched from Vandenberg Air Force Base in California. V.A. Mouzon/Tech Sgt. Vincent Mouzon/U.S. Air Force hide caption

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Should America Keep Its Aging Nuclear Missiles?

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Lt. Raj Bansal and Capt. Joseph Shannon (right) approach Foxtrot-01, a remote nuclear missile base in Nebraska. Geoffrey Brumfiel/NPR hide caption

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Welcome To The Nuclear Command Bunker

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First Lt. Patrick Romanofski (center) and 2nd Lt. Andrew Beckner (left) practice the launch of nuclear weapons. Promotions are now more strongly influenced by hands-on performance in this simulator. R.J. Oriez/U.S. Air Force hide caption

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To Stop Cheating, Nuclear Officers Ditch The Grades

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Physicists put diamonds at the center of this massive laser, to see what would happen. Matt Swisher/Matt Swisher/LLNL hide caption

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Physicists Crush Diamonds With Giant Laser

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Researchers Aghast Over Discovery Of Smallpox Vials

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In A Lab Store Room, An Unsettling Surprise: Lost Vials Of Smallpox

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Carbon Observatory To Monitor Greenhouse Gas From Space

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The Orbiting Carbon Observatory-2 will monitor carbon dioxide emissions. jhoward/NASA/JPL hide caption

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Carbon-Sensing Satellite Prepares For Second Launch

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World's Chemical Weapons Watchdog Clears Syria

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A close up of the Brazuca ball in NASA's Ames Fluid Mechanics Laboratory. Smoke highlighted by lasers visualizes air flow around the ball. NASA's Ames Research Center hide caption

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Scientists Keep A Careful Eye On The World Cup Ball

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The remote HAARP facility in Alaska has 180 antennas that are used to study the ionosphere. Courtesy of Christopher Fallen hide caption

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Bye-Bye To The Home Of A Favorite Internet Conspiracy Theory

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