The narrow galaxy elegantly curving around its spherical companion in this image is a fantastic example of a truly strange and very rare phenomenon! 💫 👀
 
This image, taken with NASA’s Hubble Space Telescope depicts GAL-CLUS-022058s. GAL-CLUS-022058s is the largest and one of the most complete Einstein rings ever discovered in our universe. The object has been nicknamed by astronomers studying this Einstein ring as the “Molten Ring,” which alludes to its appearance and host constellation.
 
First theorized to exist by Einstein in his general theory of relativity, this object’s unusual shape can be explained by a process called gravitational lensing, which causes light shining from far away to be bent and pulled by the gravity of an object between its source and the observer.
 
In this case, the light from the background galaxy has been distorted into the curve we see by the gravity of the galaxy cluster sitting in front of it. The near exact alignment of the background galaxy with the central elliptical galaxy of the cluster, seen in the middle of this image, has warped and magnified the image of the background galaxy into an almost perfect ring. The gravity from other galaxies in the cluster causes additional distortions.
 
Objects like these are the ideal laboratories in which to study galaxies that are often too faint and distant to otherwise see without gravitational lensing.
 
Credit: ESA/Hubble & NASA, S. Jha; Acknowledgment: L. Shatz
 
NASA image use policy.
 
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
 
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