Spotted by the Gran Telescopio Canarias combined with images from the Hubble Telescope, astronomers have discovered a new Einstein’s cross which confirms a phenomenon called gravitational lensing which he had predicted in his Theory of General Relativity.
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In his theory of general relativity, Albert Einstein said that the trajectory of light curves in the presence of matter. This effect can be observed in the case of light emitted by a distant galaxy, when its light passes close to another galaxy on its way to the observer.
The phenomenon is known as gravitational lensing and gravitational lenses act like magnifying glasses that change the size, shape, and intensity of the image of the distant object.
(Image credit: Instituto de Astrofisica de Canarias)