November 19, 2010
The total distance in light-years as measured today is therefore greater than the actual time of travel as measured by a stopwatch multiplied by the speed of light.
Photo by NASA/ESA/S. Beckwith (STScI)/HUDF Team
Using this logic and some equations, one can show that, given the universe’s age of 13.7 billion years, the most distant object we could possibly see in the universe today is about 47 billion light-years away.
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