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,
The Magical Music Box which accompanied the stories" 1. Journey to the Stars - The Planets by Gustav Holst 2. Hall of the Troll King - Peer Gynt Suites by Edvard Grieg 3. Sky Racers - Beethoven's Pastoral Symphony 4. The Wizard's Spell - Swan Lake by Tchaikovsky 5. House of Terrors - Symphonie Fantastique by Berlioz 6. Daylight Robbery - Rhapsody in Blue by George Gershwin 7. The River God - Ravel's Bolero 8. Night of the Aliens - Bach's Orchestral Suite No 4 9. The Bull Fights Back - Bizet's Carmen Suites 1 and 2 10. Animal Rescue - Carnival of the