![Image taken by the Hubble Space Telescope of the Einstein ring GAL-CLUS-022058s, located in the constellation of Fornax. Credit: ESA/Hubble & NASA, S. Jha; Acknowledgment: L. Shatz Image taken by the Hubble Space Telescope of the Einstein ring GAL-CLUS-022058s, located in the constellation of Fornax. Credit: ESA/Hubble & NASA, S. Jha; Acknowledgment: L. Shatz](/sites/default/files/styles/crop_square_2_2_to_320px/public/images/news/potw2050a%20web.jpg?h=b3528276&itok=uasHAw9n)
In December 2020 a team from the European Space Agency (ESA) published an image taken by the Hubble Space Telescope (HST) of GAL-CLUS-022058s, the biggest and one of the most complete Einstein rings discovered, situated towards the southern hemisphere constellation of Fornax. Since then, those observations have been used to develop a model of gravitational lenses which has enabled the study of the physical properties of the amplified galaxies.
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