Gravitational Lensing is an interesting phenomenon that takes place due to the bending of light rays from a distant source due to massive galaxies and galactic clusters. Such galactic clusters acts as a lens, distorting, magnifying, various background objects as observed from Earth.

In this video I talk about the General theory of relativity, Gravitational lens, Einstein rings, Einstein cross and various applications in astronomy and astrophysics because of gravitational lensing.


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