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) Blue", the BBC's 2003 theatrical nature documentary which used re-edited footage from "The Blue Planet". The film was co-directed by Alastair Fothergill and Mark Linfield and produced by Alix Tidmarsh and Sophokles Tasioulis. Only 30% of the footage shown in "Earth" is new, with the remainder being reworked from the television series to suit the narrative of the film. David Attenborough was replaced as narrator by high-profile actors: Patrick Stewart for the UK market and James Earl Jones for the United States. "Earth" had its worldwide premiere in September 2007 at the San Sebastián International Film Festival in San Sebastián,