EVERYDAY SCIENCE

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: -one. The simple answer is that Earth has only one moon, which we call “the moon”. It is the largest and brightest object in the night sky, and the only solar system body besides Earth that humans have visited in our space exploration efforts.

Detailed explanation-3: -We on Earth have just one moon, but some planets have dozens of them. Others don’t have any.

Detailed explanation-4: -Billions of years ago, an object the size of Mars smashed into the Earth. The resulting debris jetted into orbit, leaving us with one moon-and maybe two. If you visited the surface of the Earth 4.5 billion years ago, you wouldn’t recognize it. The newly formed planet was still cooling from its recent coagulation.

Detailed explanation-5: -On earth, as a measurement of time, three moons would be eighty-four days. On another planet, with multiple mons it would be possible to look up into the night sky and see more than one moon in orbit.