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
Planet Earth (franchise) in Peru. The programme was shown in May 2012 on BBC One in the United Kingdom and was broadcast in 140 countries in total, making it the most amibitious global wildlife series the BBC had ever undertaken. In the US it was retitled "24/7 Wild" and aired on NatGeo Wild; in South Africa, Asia, Australia, Italy, Nordic countries, New Zealand and Poland it was shown on BBC Knowledge; and in India on BBC Entertainment. Planet Earth II is an ongoing natural history documentary series, produced by the BBC as a sequel to the highly successful "Planet Earth" television series, which