Discover the Planets in Order From the Sun | Almanac.com
https://www.almanac.com/planets-in-order
WEBAug 27, 2023 · The first system labels planets by size and composition, because the first four planets in order from the Sun – Mercury, Venus, Earth, and Mars – are all small, with rocky surfaces and orbits close to one another. From Jupiter outward the planets are enormous, gassy, possess no surfaces, and have orbits with vast spaces between them.
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