VLA and Hubble telescope image of galaxy cluster MACSJ0717.5+3745
A Karl G. Jansky Very Large Array radio image superimposed on a Hubble Space Telescope image of the galaxy cluster MACSJ0717.5+3745. The red-orange objects are large structures called radio relics, possibly caused by shock waves within the cluster.
[The National Radio Astronomy Observatory is a facility of the U.S. National Science Foundation.]
Learn more in the NRAO news story Cosmic lens reveals faint radio galaxy. (Date image taken: unknown; date originally posted to NSF Multimedia Gallery: June 22, 2021)
Credit: Heywood et al.; Sophia Dagnello, NRAO/AUI/NSF; STScI. (Creative Commons CC BY-NC-ND 3.0.
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