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an illustration of gravitational waves

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The NANOGrav Collaboration has found the first evidence for low-frequency gravitational waves permeating the cosmos. This finding was made possible with 15 years of pulsar observations that turn the Milky Way into a galaxy-sized gravitational-wave detector.

Two people in front of a telescope

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Ann Schmiedekamp and Carl Schmiedekamp, physicists from Penn State Abington, in front of the Green Bank Telescope in West Virginia. 

an illustration of gravitational waves

nanograv.jpg

The NANOGrav Collaboration has found the first evidence for low-frequency gravitational waves permeating the cosmos. This finding was made possible with 15 years of pulsar observations that turn the Milky Way into a galaxy-sized gravitational-wave detector.