File:External view of a Bernal sphere.jpg

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DescriptionExternal view of a Bernal sphere.jpg	Artist's impression of the exterior view of a Bernal sphere space habitat design. Description from NASA: "The residential area is in the central sphere. Farming regions are in the "tires". Mirrors reflect sunlight into the habitat and farms. The large flat panels radiate away extra heat into space, and panels of solar cells provide electricity. Factories and docks for spaceships are at either end of the long central tube." NASA ID number AC76-0965. External link: "Space oddity: NASA's retro guide to future living" at CNN.
Date	11 June 1976
Source	NASA gallery "Space Colony Art from the 1970s"
Author	Rick Guidice

	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."

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	20:43, 23 August 2020		1,920 × 1,387 (489 KB)	commons>Raymond1922A	Colors not washed-out.

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Height	5,878 px
Bits per component	8 8 8
Compression scheme	Uncompressed
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Software used	Adobe Photoshop CS5 Windows
File change date and time	17:20, 26 August 2012
Color space	Uncalibrated
Date and time of digitizing	07:41, 24 June 2012
Date metadata was last modified	10:20, 26 August 2012
Unique ID of original document	xmp.did:379C7C2B42BEE1119C35B1571DC0CB0E