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Gravitational Waves Finally Detected!

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 Astronomy   |   Physics   |   Science
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Long ago, deep in space, two massive black holes slowly drew together. The stellar ghosts spiraled ever closer, until, about 1.3 billion years ago, they whirled about each other at half the speed of light and finally merged. The collision sent a shudder through the universe: ripples in the fabric of space and time called gravitational waves. Five months ago, they washed past Earth. And, for the first time, physicists detected the waves, fulfilling a four-decade quest and opening new eyes on the heavens. Learn more http://scim.ag/1QYgZwy

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