Terrestrial planet Terrestrial planet A terrestrial planet, telluric planet, or rocky planet is a planet that is composed primarily of silicate rocks or metals. Within the Solar System, the terrestrial planets are the inner planets closest to the Sun, i.e. Mercury, Venus, Earth, and Mars. The terms "terrestrial planet" and "telluric planet" are derived from Latin words for Earth ("Terra" and "Tellus"), as these planets are, in terms of structure, "Earth-like". Terrestrial planets have a solid planetary surface, making them substantially different from the larger giant planets, which are composed mostly of some combination of hydrogen, helium, and water existing in various
One of Our Aircraft Is Missing Submarines; a "" episode "One of Our Planets Is Missing"; the final episode of the US television series "Maverick", titled "One of Our Trains Is Missing"; the episode "One of Our Dogs is Missing" from the US television series "Lost in Space"; the episode "One of Our Assemblymen is Missing" from the US sitcom "Green Acres"; the episode "Two of Our Weirdos Are Missing" from the US sitcom "Laverne & Shirley"; the episode "One of Our Stately Homes is Missing" from the British spy-spoof cartoon series "Danger Mouse"; a 1991 text adventure game by Zenobi called "One of Our Wombats