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,
Marrowstone Music Festival music. Selections in the past have included but were not limited to, "Classical Symphony" by Sergei Prokofiev, "Pines of Rome" by Ottorino Respighi, "The Planets" by Gustav Holst, "Carmen Suite" by Georges Bizet, and many other classical orchestral works. The orchestral concerts each week of this festival are broadcast by Classical KING-FM shortly after the concerts. Marrowstone Music Festival The Marrowstone Music Festival is an orchestral training program that takes place in the Pacific Northwest. The program is targeted at high school and college students, around 200 of which play in the program annually. The festival features orchestral and chamber