Sunday, April 14, 2024

Scientists may have found the background ripples of the universe

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Scientists may have identified the gravitational waves that make up a part of the universe background, not just those from unusual events like black hole collisions. New Atlas reports that the NANOGrav research team discovered a “strong signal” that could represent the background of gravitational waves – that is, waves from supermassive black holes merge across the cosmos.

Rather than trying to detect waves directly, NANOGrav researched the effects of these waves on pulsars, whose light patterns are generally consistent over long periods of time. The researchers looked at as many pulsars as possible (45 so far) for as long as possible (at least three years) and noticed a common process that seemed to skew the collective timing by hundreds of nanoseconds.


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