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Have to qualify the question some. the universe is 13.8 billion years old, and because it continually expands, I've read this makes the observable universe a sphere of radius around 45 billion light years. So, I'll take this observable portion as "the universe" as, for all we know, the true size could be infinite.
So, the volume is, keeping things to just a couple significant figures, 1.3333*3.14*(45 billion)^3 cubic light years. Light travels about 300,000,000 meters per second, and there are about 3600*24*365 seconds in a year, so there are ((3x10^8)*(3600*24*365))^3 cubic meters in a cubic light year. The final answer is, rounded to a few significant figures, 323*10^80 cubic meters.
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----- Todd (Bowie, MD, US, North America, Earth, Sol System, Vega region, Local Bubble, Orion arm, Milky Way Galaxy, Local Group, Virgo A Cluster, Virgo supercluster, the universe in which spock is clean shaven) Quidquid latine dictum sit, altum sonatur. personal page: http://blog.astrosketches.info |
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What's that in six-packs?
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Bring back Firefly! "It is quite clear that Occam's razor does not sharpen in your pyramid." (Nicolas) "Still, a man hears what he wants to hear and disregards the rest." (Paul Simon) |
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