eli5 Is it correct to think of events happening on the far side of the universe or in a different galaxy as occurring “at the same time”?
In: Physics
Yes two events on opposite side of the galaxy can happen at the “same time”, meaning simultaneously, but that does not mean you will observe them happening at the same time where you are. You will see the one farther from you happen later due to the light from the event having to travel farther.
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