How does gravitational lensing work? | Science News

The gravity of a galaxy cluster warps spacetime (grid) and creates a lens that redirects light from a more distant galaxy (upper left). Some of the light rays bend toward Earth (orange). Multiple images of the galaxy might appear as the light traverses several paths through the cluster.  

Read more: http://ow.ly/T2RdW

Animation: NASA, ESA, and G. Bacon and F. Summers (STScI)

Production: Helen Thompson

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