Geology of solar terrestrial planets Geology of solar terrestrial planets The geology of solar terrestrial planets mainly deals with the geological aspects of the four terrestrial planets of the Solar System – Mercury, Venus, Earth, and Mars – and one terrestrial dwarf planet: Ceres. Earth is the only terrestrial planet known to have an active hydrosphere. Terrestrial planets are substantially different from the giant planets, which might not have solid surfaces and are composed mostly of some combination of hydrogen, helium, and water existing in various physical states. Terrestrial planets have a compact, rocky surfaces, and Venus, Earth, and Mars each also have an atmosphere.
St Paul's Suite 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 suite has