File:End of universe.jpg

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Diagrams of three possible geometries of the universe: closed, open and flat from top to bottom, corresponding to a density parameter which is greater than, less than or equal to 1. The closed universe is of finite size and, due to its curvature, traveling far enough in one direction will lead back to one's starting point. The open and flat universes are infinite and traveling in a constant direction will never lead to the same point.

Source: Author: NASA / WMAP Science Team


Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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04:52, 6 January 2006 en:User:Voyajer (Permission of NASA Official: Gary Hinshaw)

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current17:21, 20 March 2006Thumbnail for version as of 17:21, 20 March 2006557 × 501 (52 KB)MaksimLa bildo estas kopiita de wikipedia:en. La originala priskribo estas: == Summary == Permission of NASA Official: Gary Hinshaw == Licensing == {{PD-USGov}} {| border="1" ! date/time || username || edit summary |---- | 04:52, 6 January 2006 || [[:en:User:

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