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4 Billion People Worldwide Have Untreated Cavities: Study

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NASA Spacecraft Sees Tornado's Destructive Swath

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The Newcastle-Moore EF-5 tornado ripped through central Oklahoma on May 20, 2013, killing 24...

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Metamaterial Flexible Sheets Could Transform Optics: New design flattens bulky optical devices

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(a) Photograph of an ultrathin (72 µm thick) metamaterial sample. (b) Illustration of how the metamaterial redi...

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Cassini Sees Precursors to Aerosol Haze on Titan

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NASA's Cassini spacecraft looks toward the night side of Saturn's largest moon and sees...

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