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Why We're All Trapped In 3-D

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Albert Einstein once wrote that he was indebted to a favorite uncle for giving him a toy steam engine when he was a boy, launching a lifelong interest in science. AP hide caption

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Einstein Saw Space Move, Long Before We Could Hear It

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An image from a simulation of two black holes merging. Courtesy of SXS Collaboration hide caption

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Einstein, A Hunch And Decades Of Work: How Scientists Found Gravitational Waves

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A Star-Crossed 'Scientific Fact': The Story Of Vulcan, Planet That Never Was

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This artist's impression shows the surroundings of the supermassive black hole at the heart of the active galaxy NGC 3783 in the southern constellation of Centaurus. M. Kornmesser/ESO hide caption

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Falling: How To Meet Einstein In An Elevator

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William Thomson Kelvin (1824 - 1907) who proposed the absolute or Kelvin temperature scale. He also established the second law of thermo-dynamics. He was brilliant. But he wasn't perfect. W. & D. Downey/Getty Images hide caption

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