Gravitational Lensing
einstein's General Theory of Relativity demonstrates that a large mass can deform spacetime and bend the path of light... When light passes through the cluster from an object lyingbehind it, the light is bent and focused to produce an image or images of the source... The characteristics of the gravitationally lensed imagedepend upon the alignment of the observer, the lens and the background object...
Tags: gravitation, astrophysics, bend, quasar, galaxy,
