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The Bruce Murray Space Image Library

The terrestrial planets, to scale

Filed under scale comparisons, presentation slides, Mercury, Venus, Earth, the Moon, Mars

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The terrestrial planets, to scale The four terrestrial planets plus the Moon (often considered an honorary terrestrial planet), compared in size and very roughly in color: Mercury, Venus, Earth, the Moon, and Mars.

NASA / JPL / JHUAPL / STScI / Jason Perry / Mattias Malmer / Ted Stryk. Montage by Emily Lakdawalla.

All of these are represented in approximately natural color, as a human might see them. Mercury and the Moon are both very dark, reflecting on average only 10% of the light that hits them, so they really should be shown much darker here. Mars is nearly as dark, but it does have water ice clouds that are bright like Earth's.

The view of Mercury is from MESSENGER, processed by Jason Perry; Venus is from Mariner 10, processed by Mattias Malmer; Earth is from Galileo, processed by Ted Stryk; the Moon image is from an unknown source; and Mars is from Hubble, processed by Gordan Ugarkovic.  All have been rotated so that they appear to be lit from the same direction.

Copyright holder: Ted Stryk

Copyright holder: Jason Perry

Copyright holder: Mattias Malmer

Copyright holder: Emily Lakdawalla

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