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Can a beam of light create a gravitational disturbance?
I know that mass can warp space-time, which has the effect of bending light that passes near enough to the mass. Can light create a gravitational warp in space-time too? My question arises from the fact that photons have no mass, but light has energy, which is related to mass (E=mc^2). Thanks for your answers!
Yes, it can.
This is central to the general theory of relativity.
In fact, all energy contributes to gravity, and the field equations link gravity to a quantity called stress energy and not mass.
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