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How did we feel two black holes collide a billion light-years away?
In 2015 a ripple in spacetime changed the length of a giant detector by a thousandth of the width of a proton. It sounded like a bird's chirp.
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In 2015 a ripple in spacetime changed the length of a giant detector by a thousandth of the width of a proton. It sounded like a bird's chirp.
Tap to go on, or swipe →