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Q & A: light from old sources

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Most recent answer: 10/31/2016
Q:
Does light continue to travel in space, even if the light source is terminated?
- Robert (age 58)
85143
A:

Yes. The fate of the source has no effect on the remote light. Many of the stars that we see have long since died, if we use a standard coordinate system to describe "then" and "now" at their remote locations.

Mike W.


(published on 10/31/2016)

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