Universe

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m (Observable universe moved to Universe: no need to have separate article for this)
(greatly expanding; back later to continue... (might have some inaccurate statements as it is now))
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The observable universe is the portion of the universe fro which we are able to observe. This term differs from the term absolute universe in that the absolute universe encompasses that for which we can not see.  Since the universe is theorized to be about 12.7 billion years old, the observable universe is about 12.7 billion light years across.
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{{wikipedia}}
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The '''universe''' is generally understood to be everything which physically exists, including all forms of matter and energy and all events that occur involving the two. It is sometimes contrasted with a supposed "other world" of some metaphysical nature (e.g., other "planes of existence").
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==Scientific description==
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According to the most widely accepted [[scientific theory]], the universe consists of a four-dimensional "continuum" of space-time (three dimensions of space and one of time) that grew out of a [[Wikipedia:singularity|singularity]] (a dimensionless point) in an event called the [[Big Bang]] about 12.7 billion years ago.
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It is currently unknown whether the universe extends beyond the ''observable'' universe, that part which we are able to observe (at least theoretically) from our particular vantage point at this particular time (because of the age of the universe, this portion would be about 12.7 billion [[Wikipedia:Light year|light year]]s across). Many cosmologists assume that there are portions of the universe which we can not (presently) see.
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[[Category:Science]]

Revision as of 19:00, 31 January 2007

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For more information, see the Wikipedia article:

The universe is generally understood to be everything which physically exists, including all forms of matter and energy and all events that occur involving the two. It is sometimes contrasted with a supposed "other world" of some metaphysical nature (e.g., other "planes of existence").

Scientific description

According to the most widely accepted scientific theory, the universe consists of a four-dimensional "continuum" of space-time (three dimensions of space and one of time) that grew out of a singularity (a dimensionless point) in an event called the Big Bang about 12.7 billion years ago.

It is currently unknown whether the universe extends beyond the observable universe, that part which we are able to observe (at least theoretically) from our particular vantage point at this particular time (because of the age of the universe, this portion would be about 12.7 billion light years across). Many cosmologists assume that there are portions of the universe which we can not (presently) see.

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