Hamdi Amroun*
Gravitational lensing, a phenomenon predicted by Einstein's Theory of General Relativity, occurs when massive objects such as galaxies or galaxy clusters bend the path of light from background sources, acting as cosmic lenses. This paper explores the mechanisms and consequences of gravitational lensing, shedding light on its role in unveiling the universe's structure and composition. Through an examination of theoretical principles, observational techniques, and recent discoveries in gravitational lensing, this study elucidates the profound insights offered by this cosmic phenomenon.
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