After 15 years, gravitational waves detected as cosmic ‘hum’
Astronomy
By |
James Dean
,
Cornell Chronicle
6/29/2023
More News from A&S
Simon Wheeler for Cornell University
Alumni authors
11/25/2025
Cornellians
Provided
Gail Heriot
Freedom and Free Societies
11/24/2025
A&S Communications
Creative Writing Program
11/24/2025
Cornell Chronicle
Career development resources
11/21/2025
A&S Communications
View all news
NANOGrav/Sonoma State University/Aurore Simonnet
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.
Related articles
Carl Sagan Institute/R. Payne
Artist impression showing the exoplanet LP 890-9c’s potential evolution from a hot Earth to a desiccated Venus.
Carl Sagan Institute/R. Payne
Artist impression showing the exoplanet LP 890-9c’s potential evolution from a hot Earth to a desiccated Venus.
Astronomy
6/21/2023
Cornell Chronicle
NASA/JPL
An image of Jupiter's Great Red Spot, upper right, and the planet's swirling surface, was taken by the Juno spacecraft on Dec. 30, 2020.
NASA, ESA, CSA, STScI
In this image of Stephan’s Quintet, a visual grouping of five galaxies from the James Webb Space Telescope, sparkling clusters of millions of young stars and starburst regions of fresh star birth are revealed. Sweeping tails of gas, dust and stars are being pulled from several of the galaxies due to gravitational interactions. Most dramatically, Webb captures huge shock waves as one of the galaxies, NGC 7318B, smashes through the cluster.
Friends of Astronomy
6/15/2023
A&S Communications
Breakthrough Listen / Danielle Futselaar
An artist's conception of an alien device that generates repetitive signals.
Breakthrough Listen / Danielle Futselaar
An artist's conception of an alien device that generates repetitive signals.
Astronomy
5/30/2023
A&S Communications
Related department or program
Related people
George Feldstein Professor of Astronomy
Astronomy, Carl Sagan Institute, CCAPS, Physics
