Night Starlight travels in a straight line across the universe until reaching the Earth, so a star photographed at night will be seen at its true position
Eclipse During an eclipse, starlight is deflected as it passes near the Sun. According to Einstein’s general theory of relativity, the Sun’s sheer mass causes the spacetime fabric to curve around it, and a light ray crossing this region will shift its course
The measure Einstein predicted that light would bend at an angle of 1.75 arcseconds, roughly twice the amount that other physicists had predicted using Newton’s law of gravity
Why light bends
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