Scientists have observed for the first time the faint ripples caused by the motion of black holes that are gently stretching and squeezing everything in the universe. They reported Wednesday that they ...
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Weather words: Concentric waves

Concentric waves are circular ripples on water created by raindrops or other surface disturbances, visually showing how ...
This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. NEW YORK (AP) — Scientists have observed for ...
Scientists have observed for the first time the faint ripples caused by the motion of black holes that are gently stretching and squeezing everything in the universe.They reported Wednesday that they ...