File: NASA-EarlyEarth-PaleOrangeDot-20190802.jpg

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Summary

Description	English: When haze built up in the atmosphere of Archean Earth, the young planet might have looked like this artist's interpretation - a pale orange dot. A team led by Goddard scientists thinks the haze was self-limiting, cooling the surface by about 36 degrees Fahrenheit (20 Kelvins) – not enough to cause runaway glaciation. The team’s modeling suggests that atmospheric haze might be helpful for identifying earthlike exoplanets that could be habitable.
Date	1 February 2017, 02:43:22
Source	https://www.flickr.com/photos/gsfc/32407459560; see also https://www.nasa.gov/feature/goddard/2019/shining-starlight-on-the-search-for-life and https://www.nasa.gov/feature/goddard/2017/nasa-team-looks-to-ancient-earth-first-to-study-hazy-exoplanets
Author	NASA/Goddard Space Flight Center/Francis Reddy

	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	01:09, 6 August 2019		3,840 × 2,160 (1.71 MB)	wikimediacommons>Huntster	Higher resolution version.

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Width	3,840 px
Height	2,160 px
Bits per component	8 8 8
Pixel composition	RGB
Orientation	Normal
Number of components	3
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Software used	Adobe Photoshop CC 2015 (Windows)
File change date and time	01:01, 2 February 2017
Exif version	2.21
Color space	Uncalibrated
Date and time of digitizing	21:43, 31 January 2017
Date metadata was last modified	20:01, 1 February 2017
Unique ID of original document	xmp.did:c3cf5860-f131-4a43-b8a9-d3c84d03932a
IIM version	24,832