Maybe
Yes.
Jupiter's massive gravitational pull holds the moons in place. have you ever taken someone's hands and you both swung around in a circle? Well, one of the things holding you together is gravity. You both kind of have a pull on each other keeping you balanced. It sort of similar with Jupiter and its moons. The pull is equaled by the gravity of the moons.
Uranus has around 15 moons in orbit, but scientists believe there may be more, smaller satellites they haven't discovered yet. Only one spacecraft has ever been to the planet.
Astronomical observations of Jupiter have been made for centuries using telescopes. Several spacecraft missions have also been sent to study Jupiter up close, including the Galileo and Juno missions, which have provided valuable insights into the planet's atmosphere, moons, and magnetic field.
Like all the outer planets, Uranus is surrounded by a swarm of moons. As of 2011, there are 27 known and named moons. Five are large icy satellites that were discovered from Earth, eleven were located by Voyager 2 in 1986, and the rest in telescopic surveys since 1997. The orbits of the inner 13 moons are intimately connected to the rings of Uranus, which are thin and tenuous. These moons are small, none larger than 162 km in diameter and some as small as only 18 to 30 km. The orbits are thought to have changed substantially since they were first established. The outer 9 moons are thought to be captured asteroids, and all but one orbit in the opposite direction from the five large moons, and millions of kilometers farther from the planet. The outermost, Ferdinand, averages 20 million km from Uranus and is estimated to require 7.7 Earth years to make a single orbit of the planet. Although Voyager 2 performed a survey of Uranus' moons, it passed by when tilted Uranus was at the height of southern summer. As a result, only the southern hemispheres of Uranus's moons have ever been imaged by spacecraft. Additionally, the "bull's-eye" pattern of Uranus' rings and moons on the sky meant that Voyager 2 saw only Miranda close-up; the rest of the moons were only seen distantly.
No, it is not true that Pluto has 7 satellites. Pluto actually has five known satellites which are Charon, Styx, Nix, Kerberos, and Hydra.
Mercury does not orbit the earth - ever!
There is no reason to believe that he "won't ever" have more moons. On the contrary, it is quite possible that the gas giants - like Saturn - have gravitationally captured some asteroids, converting them into their moons - and this may happen again.
no
What ever the spelling. The Sun does not orbit the Earth.
In our solar system, the dwarf planets Pluto and Charon orbit each other around a common center of gravity located in the empty space between them. As the only binary planets in our solar system, that makes Pluto and Charon share the title as having the most planets orbiting another planet. Planet like objects that orbit planets, without them orbiting each other, are called moons. The title for the planet with most moons, is passed back and forth between Jupiter and Saturn, as new (to us) and ever smaller moons are discovered. Currently, Jupiter holds the title with 63 moons.
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