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 (Prince album) However, Prince's management struck a deal with "The Mail on Sunday" to release "Planet Earth" as a free covermount CD with the July 15, 2007 edition of the paper. This move brought much criticism from UK record stores, which resulted in Columbia refusing to distribute the album in the UK, though its release in the rest of the world remained unaffected. Giving away albums for free was not new for Prince. In 2004, he gave free copies of "Musicology" to all concert goers during the tour of the same name. Similarly, the "Planet Earth" album was given away with tickets