GRAVITATIONAL LENSING
<p>So , today I am going to talk about gravitational lensing . What is it ? Why we should know about it , lets see .</p>
<p><strong>Gravitational lensing</strong> is a phenomenon that occurs when the gravity of a massive object bends the path of light from a distant object, causing its image to be distorted. This can be thought of as light passing through a giant magnifying glass.</p>
<p>Before going deep in to it , I am hoping that you know about <strong>spacetime</strong> , if not then no problem, I am going to tell you about it a little bit .</p>
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