File:Artist’s illustration of an advanced extraterrestrial civilization with industrial pollution, a possible "technosignature".jpg

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Artist’s illustration of a technologically advanced exoplanet. The colors are exaggerated to show the industrial pollution, which otherwise is not visible.

Summary[edit]

Description	English: It may be possible to detect some extraterrestrial civilizations via nitrogen dioxide air pollution
Date	10 February 2021
Source	https://www.nasa.gov/press-release/goddard/2021/technosignature
Author	NASA/Jay Freidlander

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	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	15:08, 1 April 2021		3,200 × 2,638 (2.74 MB)	Prototyperspective (talk \| contribs)	Uploaded a work by NASA/Jay Freidlander from https://www.nasa.gov/press-release/goddard/2021/technosignature with UploadWizard

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- Luftverschmutzung
- Technosignatur
Usage on en.wikipedia.org
- Technosignature
- 2021 in the environment

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File:Artist’s illustration of an advanced extraterrestrial civilization with industrial pollution, a possible "technosignature".jpg

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File:Artist’s illustration of an advanced extraterrestrial civilization with industrial pollution, a possible "technosignature".jpg

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