Artist Impression Nanohertz Waves (IMAGE)

National Radio Astronomy Observatory

Artist Impression Nanohertz Waves

Caption

The Earth is constantly jostled by low-frequency gravitational waves from supermassive black hole binaries in distant galaxies. Astrophysicists are using pulsars as a galaxy-sized detector to measure the Earth's motion from these waves.

Credit

B. Saxton (NRAO/AUI/NSF)

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