Terrestrial planet from the original solar nebula. The Solar System has four terrestrial planets: Mercury, Venus, Earth, and Mars. Only one terrestrial planet, Earth, is known to have an active hydrosphere. During the formation of the Solar System, there were probably many more terrestrial planetesimals, but most merged with or were ejected by the four terrestrial planets. Dwarf planets, such as Ceres, Pluto and Eris, and small Solar System bodies are similar to terrestrial planets in the fact that they do have a solid surface, but are, on average, composed of more icy materials (Ceres, Pluto and Eris have densities of 2.17,
St Paul's Suite four movements: St Paul's Suite St Paul's Suite (Op. 29, No. 2), originally titled Suite in C, is a composition for string orchestra by the English composer Gustav Holst. It was written in 1912, but owing to revisions was not published until 1922. It is named after the St Paul's Girls' School in the United Kingdom, where Holst was Director of Music from 1905 to 1934. It was written in gratitude to the school, which had built a soundproof studio for him. This suite is the most famous of the many pieces he wrote for students at St. Paul's. The