Decades ago, physicists theorized that gravitational waves leave permanent distortions in space. The next-gen detectors aim to uncover this memory effect, providing a new window into testing our grasp of gravity.
Einstein predicted gravitational waves in 1916, from asymmetrical acceleration of masses like exploding stars or merging black holes. Despite their small impact due to gravity being the weakest force, LIGO's success proved Einstein's initial skepticism wrong.
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