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 Live (TV series) Planet Earth Live (TV series) Planet Earth Live is a live-action nature documentary screened on British television. Produced by the BBC Natural History Unit and broadcast in May 2012, the programme was presented by Richard Hammond and Julia Bradbury. "Planet Earth Live" featured real-time footage of young animals from five continents throughout the month of May. Broadcast three times per week, teams of nature experts and documentary makers monitored the activity of animals in their area, reporting back on the day's events. Animals featured included meerkats in the Kalahari Desert, American black bears in Minnesota, lions and African bush elephants