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 II the working title "One Planet", but the title was later changed to "Planet Earth II". The BBC trailer for the series used the same music featured in the trailer for the original "Planet Earth", "Hoppípolla" by Icelandic post-rock band Sigur Rós. The original "Planet Earth", airing in 2006, was one of the first natural documentary series to be made in high definition (HD) and "Planet Earth II" utilised new technologies developed since the first series, including ultra high definition (4K), improved camera stabilisation, remote recording and aerial drone technology. The premiere of "Planet Earth II" took place at Bristol's Cinema