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Transwiki approved by: en:ws:User:JVbot

DescriptionAasm-fig5-27.gif	Original caption: Population of extraterrestrial civilizations as a function of galactic time. en:s:Category:Advanced Automation for Space Missions
Date	5 December 2005 (original upload date)
Source	Originally from en.Wikisource; description page is/was here.
Author	Original uploader was Bryan Derksen at en.Wikisource
Permission (Reusing this file)	PD-USGOV-NASA.

	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.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

date/time	username	resolution	size	edit summary
08:10, 5 December 2005	en:s:User:Bryan Derksen	559×365	10 KB	Original caption: Population of extraterrestrial civilizations as a function of galactic time.

link	date/time	username	edit summary
[4]	07:18, 19 October 2007	en:s:User:JVbot
[5]	07:06, 6 December 2005	en:s:User:Bryan Derksen
[6]	08:10, 5 December 2005	en:s:User:Bryan Derksen	(Original caption: Population of extraterrestrial civilizations as a function of galactic time.)

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	14:04, 20 October 2007		559 × 365 (10 KB)	BetacommandBot	Transwiki approved by: en:ws:User:JVbot {{Information \|Description=Original caption: Population of extraterrestrial civilizations as a function of galactic time. en:s:Category:Advanced Automation for Space Missions [[:en:s:commons:Category:

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