Research Reading. Terrestrial and Jovian Planets. With the exception of Pluto, planets in our solar system are classified as either terrestrial (Earth-like) or Jovian (Jupiter-like) planets.Terrestrial planets include Mercury, Venus, Earth, and Mars. These planets are relatively small in size and in mass.A terrestrial planet has a solid rocky surface, with metals deep in its interior.esearch Reading. Terrestrial and Jovian Planets. With the exception of Pluto, planets in our solar system are classified as either terrestrial (Earth-like) or Jovian (Jupiter-like) planets.