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
Escape from Planet Earth Gary receives a message from Lena Thackleman (voiced by Jessica Alba), the head of BASA, that Scorch will be sent to the "Dark Planet" (the Baabians' name for Earth) due to a SOS call. Scorch decides to go to the Dark Planet, as he already made a press conference and contacted his sponsors. However, Gary opposes as Scorch is not serious and no alien has ever returned from the Dark Planet. After further arguing, Gary finally says that he won't be helping Scorch and quits BASA before Scorch himself fires him. Gary then goes home to his wife Kira (voiced