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The Galactic Pulse: Pulsar Timing Arrays Detect Long-Period Gravitational Waves

Astrophysicists have detected long-period gravitational waves using data from 68 pulsars, as reported by NANOGrav. This discovery, based on 15 years of data, aligns with predictions of general relativity and offers insights into supermassive black holes and galaxy mergers. The research involved sign

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