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 (1986 TV series) praised "Planet Earth" as "serious, but not dry" and credited it for its vivid filming of natural scenery, use of computer graphics, and achievement of depicting ongoing scientific research of the early and mid-1980s as "challenging, interesting, and worthwhile." "Planet Earth" was the co-winner of the 1985-1986 Primetime Emmy Award for Outstanding Informational Series or Special, sharing it with "Laurence Olivier - A Life", a multi-part biography of Laurence Olivier that aired on the PBS series "Great Performances" that season. Planet Earth (1986 TV series) Planet Earth is a seven-episode 1986 PBS television documentary series focusing on the Earth, narrated