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
Gustav Holst which "Swansea Town", with its "sophisticated tone", is deemed by Dickinson to be the most memorable. Holst downplayed such music as "a limited form of art" in which "mannerisms are almost inevitable"; the composer Alan Gibbs, however, believes Holst's set at least equal to Vaughan Williams's "Five English Folk Songs" of 1913. Holst's first major work after "The Planets" was the "Hymn of Jesus", completed in 1917. The words are from a Gnostic text, the apocryphal Acts of St John, using a translation from the Greek which Holst prepared with assistance from Clifford Bax and Jane Joseph. Head comments on