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How many natural satellites (moons) does the planet Mars have?
A. One
B. Two
C. Three
D. None
Correct Answer Is Option = Two
Notes / Explanation
The planet Mars has two natural satellites, or moons, which are small bodies that orbit around the planet in the same way that the single moon of the Earth orbits around our own planet. A natural satellite is a body that moves in orbit around a planet, held by the pull of the planet's gravity, and the different planets of the solar system have different numbers of such satellites, with some planets having none, some having one, and the larger planets having a great many. The Earth has just one moon, while Mars, which is the neighbouring planet lying further from the Sun than the Earth, has two moons. The two moons of Mars are both very small, especially when compared with the Moon of the Earth, and they are irregular in shape rather than being round like our Moon, resembling small lumps of rock rather than large spherical bodies. They orbit quite close to the surface of the planet, and they move around it fairly quickly. The two moons are believed by many scientists to be objects that were captured by the gravity of the planet, possibly having originated as small rocky bodies of the kind that are found in certain regions of the solar system, rather than having formed alongside the planet itself, although the exact origin of the moons is a subject of study. The two moons of Mars have been observed and studied by telescopes and by the various spacecraft that have been sent to explore the planet, and they have been given names drawn from ancient mythology, in keeping with the tradition of naming such bodies. Mars itself has been an object of great interest and exploration, because it is one of the planets most similar to the Earth in certain respects and one that scientists have studied closely in the search for a better understanding of the solar system. The number of moons possessed by each planet is a piece of general knowledge about the solar system that is commonly asked about. For PPSC and other competitive examinations, the key points to remember are that the planet Mars has two natural satellites or moons, that both of these moons are very small and irregular in shape, that they are thought by many to be captured objects, and that they have been studied by telescopes and spacecraft and given names from ancient mythology.
