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The Detection of Gravitational Waves Was a Scientific Breakthrough, but What’s Next?
Scientists are sitting on top of the world after this monumental discovery and are eager to keep exploring the universe
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The Theory of Relativity, Then and Now
Albert Einstein's breakthrough from a century ago was out of this world. Now it seems surprisingly down-to-earth
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Why String Theory Still Offers Hope We Can Unify Physics
Evidence that the universe is made of strings has been elusive for 30 years, but the theory's mathematical insights continue to have an alluring pull
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Listening to the Big Bang
Just-reported ripples in space may open a window on the very beginning of the universe
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