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New Horizons Is Now So Far Away, It Can Measure The True Darkness of Space.
(www.sciencealert.com)
News and findings about our cosmos.
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I’m guessing that because there are always some amount of stars visible, the number would have to be above zero, but maybe as you get a certain distance away from closer stars, the darkness kind of “evens out”?
Well now you've got me wondering... how long after the heat-death of the universe before all of the traveling photons have been extinguished? How old will the universe be before it truly goes dark?