SOLAR SYSTEM

Detailed explanation-1: -Of the terrestrial (rocky) planets of the inner solar system, neither Mercury nor Venus have any moons at all, Earth has one and Mars has its two small moons.

Detailed explanation-2: -Hall named the moons for the mythological sons of Ares, the Greek counterpart of the Roman god, Mars. Phobos means fear and Deimos means dread.

Detailed explanation-3: -Potato-shaped Phobos and Deimos were initially thought to be asteroids caught by Martian gravitational pull. This scenario explains their small size, irregular shape, cratered surface and presumed non-Martian composition, but not their current orbits.

Detailed explanation-4: -The fourth planet from the Sun, Mars is one of Earth’s two closest planetary neighbors (Venus is the other).

Detailed explanation-5: -Although the moon is our only permanent natural satellite, astronomers have discovered many other near-Earth objects that could be considered honorary ‘mini’ moons.