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UK Internet Regulations Pose Risks to Free Speech

The British government is considering setting up a regulator for Internet content, which will be tasked with overseeing websites and essentially deciding which of them should be allowed in the…

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Gamma-Ray Laser Moves a Step Closer to Reality

A physicist at the University of California, Riverside, has performed calculations showing hollow spherical bubbles filled with a gas of positronium atoms are stable in liquid helium. The calculations take…

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Gamma-Ray Bursts With Record Energy Detected

The strongest explosions in the universe produce even more energetic radiation than previously known: Using specialized telescopes, two international teams have registered the highest energy gamma rays ever measured from…