Mars, the outermost terrestrial planet.


Earth, the terrestrial planet we inhabit.

Terrestrial planets, or telluric planets, include the four innermost planets of the solar system: Mercury, Venus, Earth, and Mars. The word "terrestrial" is derived from the Latin word for Earth, "Terra." This is because the eponymous planets are similar to Earth in many ways, and contrast much from gas giants[1]. The terrestrial planets are mainly comprised of silicate rocks, minerals mainly made up of oxygen and silicon. Some examples include quartz, mica, and feldspar. Earth's crust is 96% silicon minerals.

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