After 15 years, gravitational waves detected as cosmic ‘hum’
Astronomy
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James Dean
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Cornell Chronicle
6/29/2023
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The NANOGrav collaboration has found the first evidence for low-frequency gravitational waves permeating the cosmos. The finding was made possible with 15 years of pulsar observations that turned the Milky Way into a galaxy-sized gravitational wave detector.
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George Feldstein Professor of Astronomy
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