Gravitational waves detected, confirming Einstein’s theory

A team of scientists announced on Thursday that they had heard and recorded the sound of two black holes colliding a billion light-years away, a fleeting chirp that fulfilled the last prediction of Einstein’s general theory of relativity.

That faint rising tone, physicists say, is the first direct evidence of gravitational waves, the ripples in the fabric of space-time that Einstein predicted a century ago. (Listen to it here.) It completes his vision of a universe in which space and time are interwoven and dynamic, able to stretch, shrink and jiggle. And it is a ringing confirmation of the nature of black holes, the bottomless gravitational pits from which not even light can escape, which were the most foreboding (and unwelcome) part of his theory.

More generally, it means that a century of innovation, testing, questioning and plain hard work after Einstein imagined it on paper, scientists have finally tapped into the deepest register of physical reality, where the weirdest and wildest implications of Einstein’s universe become manifest.

The entirety of today I’ve been in awe over just how far science has come. The idea of measuring a ripple in spacetime at 1/100,000 of a nanometer, about the width of an atomic nucleus, using lasers and mirrors – I don’t know, it’s just awe-inspiring what we, as humans, can do when we get together in the name of science, instead of fighting each other over endless strings of pointlessness.

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