gravitational lens
distribution of matter between a distant light source and a observer
Virgo Cluster
galaxy cluster
bullet cluster
two colliding clusters of galaxies in constellation Carina
Phoenix Cluster
Galaxy cluster in the constellation Phoenix
weak gravitational lensing
gravitational deflection of light without creating noticeable extra images
Coma Cluster
cluster of galaxies in the constellation Coma Berenices
Fornax Cluster
cluster of galaxies lying at a distance of 62 million light-years
strong gravitational lensing
effect strong enough to produce multiple images, arcs, or even Einstein rings
Hydra Cluster
galaxy cluster in the constellation Hydra
Corona Borealis Cluster
galaxy cluster in the constellation Corona Borealis