I Consequence of curvature of spacetime

SD das
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I was wondering that consequence of curvature of spacetime caused by an entire galaxy! Can anyone suggest?
 
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SD das said:
I was wondering that consequence of curvature of spacetime caused by an entire galaxy! Can anyone suggest?
Well, as Arman pointed out, gravitational lensing is one consquence. Another is that galaxies move toward each other if they are close enough for the curvature (aka gravity) to overcome dark energy.
 
SD das said:
I was wondering that consequence of curvature of spacetime caused by an entire galaxy

Galaxies do curve spacetime, just like any massive object or collection of objects. The main effect of that is to keep the galaxy itself gravitationally bound--its stars remain in orbit around its center instead of drifting off into intergalactic space.
 

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