Question

What planets have no moons? Which one has only one moon? Which has the greatest number of moons?

Answer 1

Hint: A natural satellite is a term used for the body that orbits around a planet. The number of satellites is different for various planets. The table below gives us an idea of the planets and their natural satellites.

Complete step by step answer:

Planets	No. of natural satellite on that planet or moon of that planet
Mercury	zero
Venus	zero
Earth	one
Mars	two
Jupiter	Seventy-nine
Saturn	Eighty-two
Uranus	Twenty-seven
Neptune	fourteen

Mercury and Venus have no moons. Earth has only one moon. Saturn has the greatest number of moons.

Additional Information
In astronomy or astrophysics a natural satellite is a smaller body that revolves around a larger body. The reason that a smaller body moves around a larger body is the gravitational force. According to the theory of relativity, every system or body in the universe which contains mass has some gravitational force and some range of that force. Due to the gravity or gravitational force of everything in the universe, everything is in the way it is. If the value of that gravitational force would be slightly higher then everything in the universe would have collapsed within itself. Due to the large value of force, everybody would be attracted to each other and the universe has never existed in the way it does right now. Where if the value of gravitational pull would be slightly lower then everything would be expanding and nothing like a matter has ever been formed.

Note: The nature of gravitational pull is always attractive. Gravitational force and Electromagnetic force are very identical and this is the fact that led scientists to believe that as the charge is the reason for electromagnetism similarly maybe there could have a graviton which is the origin of gravitational force. There is no scientific evidence of this but this is one of the primary ideas of gravity.