The term universe has a variety of meanings based on the context in which it is described.

Though it is not uncommon – both historically and today – to include a spiritual aspect when thinking about the universe, in strictly physical terms the total universe is the summation of all matter that exists and the space in which all events occur. This article discusses the universe from a physical or empirical standpoint.

The part of the universe that can be seen or otherwise observed is usually called the known universe, observable universe, or visible universe. Because cosmic inflation removes vast parts of the total universe from our observable horizon, most cosmologists accept that it is impossible to observe the whole continuum and may use the expression our universe, referring only to that knowable by human beings in particular. In cosmological terms, the universe is thought to be a finite or infinite space-time continuum in which all matter and energy exist. It has been hypothesized by some scientists that the universe may be part of a system of many other universes, known as the multiverse.

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In truth, the universe will notice our presence and disappearance no more than any single blade of grass. #atheism
wtk1 (WTK1) Wed, 06 Jan 2010 05:13:52 -0000
In truth, the universe will notice our presence and disappearance no more than any single blade of grass. #atheism
I'm actually not a big "Blade Runner" fan, but I always loved the "time to die" speech. So evocative, painting a grand sci-fi universe.
jsnell (Jason Snell) Tue, 05 Jan 2010 20:49:45 -0000
I'm actually not a big "Blade Runner" fan, but I always loved the "time to die" speech. So evocative, painting a grand sci-fi universe.
@OffWorldNews Thanks for the RT... and happy to discover (and to join) your "Blade Runner Universe" Twittline ! :-) #bladerunner
SoyezFous (Soyez Fous ! / W*) Mon, 04 Jan 2010 18:29:20 -0000
@OffWorldNews Thanks for the RT... and happy to discover (and to join) your "Blade Runner Universe" Twittline ! :-) #bladerunner
scarfs/blade runner/random intense universe moments....must these things always collide on new years?
jaysee003 (J Cozza ) Sun, 03 Jan 2010 23:15:30 -0000
scarfs/blade runner/random intense universe moments....must these things always collide on new years?
There is so much here to love... did you know there is a Universe under a blade of grass, beneath the trees and under the stars...
angel_dove (The_Sacred_Heart) Sun, 03 Jan 2010 01:27:15 -0000
There is so much here to love... did you know there is a Universe under a blade of grass, beneath the trees and under the stars...
I favorited a YouTube video -- Black Sabbath Symptom of the Universe & Johnny Blade http://youtu.be/VlAMG51CtCE?a
leonardoxn (José Leonardo) Thu, 31 Dec 2009 19:47:59 -0000
I favorited a YouTube video -- Black Sabbath Symptom of the Universe & Johnny Blade http://youtu.be/VlAMG51CtCE?a

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