The planet with the second highest number of moons is Saturn, with 61 moons. The next planet with a high number of moons is Uranus, with 27 known moons. This is because it is the furthest planet from the Sun and so it moves slower and has further to go in its year than any other planet. Jupiter have maximum number of moons (63) followed by Saturn. It is impossible to achieve a geosynchronous orbit around Moho. Callisto has a diameter of more than 2,985 miles (4,800 km); Ganymede's diameter is 3,270 miles (5,262.4 km). Mercury and Venus have no moons, Earth has one and Jupiter has the most. Uranus has 5 large moons as well as 10 smaller ones that were discovered by the Voyager 2 probe. Mars is a cold planet, humans wishing to survive will move to that planet before having to move again when the Sun expands further. Lv 7. In our Solar System, just one planet has two moons: Mars. In recent years, other small moons of Pluto have been discovered orbiting the distant dwarf planet. Moons of Saturn are listed in order of size. Jupiter has 16 known moons; 4 big ones, discovered by Galileo, and 12 much smaller ones. a. the sun has fusion reactions, Jupiter has fission reactions b. Jupiter does not have enough mass to create the condition needed for fusion c. the sun is mostly hydrogen and helium d. Jupiter is a terrestrial planet Saturn has 48. Each planet has one or more moons except Mercury and Venus and the dwarf planet Ceres. Which two planets have the least number of moons? Our solar system consists of our star, the Sun, and everything bound to it by gravity — the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune, dwarf planets such as Pluto, dozens of moons and millions of asteroids, comets and meteoroids. Answer Save. Apparently you are aware that Mercury and Venus have no moons, and that Earth has one. Jupiter has an additional 55 tiny irregular satellites. These moons, along with a number of seen and as-yet-unseen inner moonlets (see Amalthea moonlets ), … Saturn also has hundreds to thousands of moonlets embedded in its ring system. Earth has one, Mars has two. Jupiter has 79 moons the highest number in the solar system. Related questions. Saturn's rings are much brighter than Jupiters, though. Jupiter has the most with 67 moons. Join our Space Forums to keep talking space on … Nobody else even comes close. birchardvilleobservatory. Jupiter has 63. In our Solar System, Planet Mercury and Planet Venus have no (0) satellites at all. The planet Uranus is listed as having 27 moons. Saturn is not only "Lord of The Rings" in the Solar System, it now holds the record for planet with the highest number of moons. The planet Neptune is listed as having 13 moons. Jupiter also has the biggest moon in our solar system, Ganymede. No satellites orbit them. The planet Saturn has a gravitational pull of 10.44 m/s2. As of 08-Feb-2012 Jupiter has 64 and Saturn 62. Mars has two moons, though there is evidence that they are breaking up and in a few million years Mars will have no moons. The others are all smaller and non-spherical. Pluto is not a planet really. A captured moon can orbit in either direction with or against the planet's rotation at any angle to the planet's equatorial planet, at least, initially but the equatorial bulge has a tidal effect that over time, draws the moon over it. Jupiter, for instance, has 79 known moons! Mercury: no moons Venus: no moons Earth: 1 moon. Three planets have moons: Saturn, Uranus, and Neptune. It has a radius of 25.362 kilometers or 15.759 miles, and has about 14.5 times the mass of Earth and four times its diameter – about 51.118 kilometers or 31.763 miles. The planet with the second highest number of moons is Saturn, with 61 moons. ♄ Saturn moons = 82. 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