![](http://upload.wikimedia.org/wikipedia/commons/thumb/b/b9/HST-Smiling-GalaxyClusterSDSS-J1038%2B4849-20150210.jpg/360px-HST-Smiling-GalaxyClusterSDSS-J1038%2B4849-20150210.jpg)
An Einstein ring is created when light from a galaxy or star passes by a massive object en route to the Earth. "Smiley" image of galaxy cluster (SDSS J1038+4849) & gravitational lensing (an Einstein ring) (HST).
Credit: NASA / ESA |
An Einstein ring is created when light from a galaxy or star passes by a massive object en route to the Earth. "Smiley" image of galaxy cluster (SDSS J1038+4849) & gravitational lensing (an Einstein ring) (HST).