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U.S. scientists create metallic hydrogen, a possible superconductor, ending quest

A combination of still photos taken from video shows hydrogen magnified at different stages of compression, from gas form to metallic, provided January 26, 2017. Photos courtesy of Isaa Sivera/Handout via REUTERS

U.S. scientists have succeeded in squeezing hydrogen so intensely that it has turned into a metal, creating an entirely new material that might be used as a highly efficient electricity conductor at room temperatures.

The discovery, published in the journal Science on Thursday, provides the first confirmation of a theory proposed in 1935 by physicists Hillard Bell Huntington and Eugene Wigner that hydrogen, normally a gas, could occur in a metallic state if exposed to extreme pressure.

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