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Results tagged with universe
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user 149789
The universe refers to the cosmos; all of space-time and that which exists as part of it. Alternatively, it can refer to the observable universe, which only contains the part we can see. Questions tagged with this should ask about physics at scales the size of the universe or specific properties of the universe
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What does it mean by "the age or our universe"? [duplicate]
I am always puzzled by the notion "the age of our universe" because, correct me if I am mistaken, the universe is the entirety of the spacetime. … That's why I always wants to know what exactly do physicist/mathematicians mean what they use the notion "the age of our universe". …
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