SOLAR SYSTEM

Detailed explanation-1: -At 3, 400 kilometers in diameter, the Moon’s is still larger than Mercury, though. For the terrestrial planets (Mercury, Venus, Earth and Mars), our Moon stands alone.

Detailed explanation-2: -Jupiter’s moon Ganymede is proving to be a fascinating world. Not only is it the largest moon in our solar system, bigger than the planet Mercury and the dwarf planet Pluto, but NASA’s Hubble Space Telescope has found the best evidence yet for an underground saltwater ocean on Ganymede.

Detailed explanation-3: -Which of the following is true of the terrestrial planets? They have solid surfaces. They are small compared to Jovian planets.

Detailed explanation-4: -The Earth-Moon system is unique among the terrestrial planets in that it is the only system with two large, differentiated spherical bodies. In a geological sense, Earth’s Moon, which is only slightly smaller than Mercury, is indistinguishable from a planet.

Detailed explanation-5: -Most moons are captured bits of rock left over from the formation of the planet as it swept its bit of orbit clear. Our moon is (probably) the result of a very big bit of rock hitting the early Earth and splitting it into two. The smaller bit ended up as the moon.