File:Terrestrial planet sizes2.jpg

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Summary

DescriptionTerrestrial planet sizes2.jpg	English: This diagram shows the approximate relative sizes of the terrestrial planets, from left to right: Mercury, Venus, Earth and Mars. Distances are not to scale. A terrestrial planet is a planet that is primarily composed of silicate rocks. The term is derived from the Latin word for Earth, "Terra", so an alternate definition would be that these are planets which are, in some notable fashion, "Earth-like". Terrestrial planets are substantially different from gas giants, which might not have solid surfaces and are composed mostly of some combination of hydrogen, helium, and water existing in various physical states. Terrestrial planets all have roughly the same structure: a central metallic core, mostly iron, with a surrounding silicate mantle. Terrestrial planets have canyons, craters, mountains, volcanoes and secondary atmospheres.
Date	3 August 2020, 05:22:28
Source	Mercury Globe-MESSENGER mosaic centered at 0degN-0degE.jpg Venus 2 Approach Image.jpg The Blue Marble (remastered).jpg OSIRIS Mars true color.jpg
Author	Mercury image: NASA/JHUAPL Venus image: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington Earth image: NASA/Apollo 17 crew, retouch by User:Aaron1a12 Mars image: ESA/MPS/UPD/LAM/IAA/RSSD/INTA/UPM/DASP/IDA
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Licensing

For the Mercury image, Venus image, and Earth image:

	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."

For the Mars image:

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File history

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	Date/Time	Dimensions	User	Comment
current	12:46, 23 May 2022	5,208 × 2,251 (1.75 MB)	CactiStaccingCrane	Reverted to version as of 16:22, 20 April 2022 (UTC)
	16:49, 22 May 2022	5,208 × 2,251 (2.18 MB)	CactiStaccingCrane	true color of venus is plain white
	16:22, 20 April 2022	5,208 × 2,251 (1.75 MB)	CactiStaccingCrane	True color images (except venus because somehow NASA cannot align their probes properly)
	09:27, 2 August 2020	5,208 × 2,251 (3.51 MB)	JCP-JohnCarlo	Uploaded a work by Mercury image: NASA/JHUAPL<br>Venus image: NASA/JPL-Caltech<br>Earth image: NASA/Apollo 17 crew<br>Mars image: ESA/MPS/UPD/LAM/IAA/RSSD/INTA/UPM/DASP/IDA from Mercury Globe-MESSENGER mosaic centered at 0degN-0degE.jpg<br>PIA23791-Venus-NewlyProcessedView-20200608 (cropped2).jpg<br>[[:File:The Earth seen from Apollo 17.jpg\|The Earth seen fr...