Newly measured distance to stellar debris in the northern sky links it more firmly to an explosion observers saw in 1181.
Laser beams and an aerodynamic levitator help scientists melt cement into a metallic-glass material that can act as a semiconductor.
Large Hadron Collider engineers are ironing out wrinkles in a tremendously complicated machine that consumes about the same power as all Geneva.
Technology being developed at Lawrence Livermore lab could soon make more precise radiation therapy widely available to cancer patients by making the specialized machines more compact.
Large Hadron Collider, which sits in a nearly 17-mile-long circular tunnel that lies beneath the French-Swiss border, is set to start circulating particles next month.
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