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After 100 Years, Scientists Are Finally Closing In on Einstein's Ripples


4km "west" arm of the LIGO interferometer

The 4km "west" arm of the LIGO interferometer stretches into the foggy distance.

Credit: Eric Berger

The rain began to fall as Joe Giaime and I scrambled down a lonely rise, back toward the observatory's main building.

From Ars Technica
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