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
The Planets five then-known dwarf planets, Eris, Pluto, Haumea, Makemake, and Ceres. Unlike Matthews' composition, this work is not intended to be incorporated into a performance of Holst's suite. In 2006, the Berlin Philharmonic, with Sir Simon Rattle and EMI Classics, commissioned four composers (Kaija Saariaho, Matthias Pintscher, Mark-Anthony Turnage, and Brett Dean) and recorded an additional, four-movement suite based on asteroids in the Solar System. The four movements were: Holst adapted the melody of the central section of "Jupiter" in 1921 to fit the metre of a poem beginning "I Vow to Thee, My Country". As a hymn tune it has