Why do some planets has it's own moon and some doesn't?
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5 Answers to "Why do some planets has it's own moon and some doesn't?"
Posted by lostinchicago Nov 23rd, 2012 at 7:52PM
Venus and Mercury are the only two planets that do not have a single moon in orbit about them.
If Venus and Mercury do not have moons and other planets have so many, how does a planet get a moon? Scientist think that there are three ways that a planet obtains a moon:
During the early period of the Solar System, planets accreted matter to gain mass. Some astronomers think that regular moons are simply matter that was not accreted, but remained within a planet’s gravitational influence.
Other moons, called irregular moons, were captured later.
They were most likely asteroids or comets that ended up trapped by a planet’s gravity. Some of them may have even accreted smaller particles n their path as the orbited their primary.
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Posted by ImaSecret16 Nov 23rd, 2012 at 7:51PM
It just happened to be that way.
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Posted by kimmygary Nov 23rd, 2012 at 7:51PM
why do some people show there uranus and others dont haha
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Reply by starship33 Nov 23rd, 2012 at 7:52PM
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Posted by MikeWinther Nov 23rd, 2012 at 7:51PM
Some like being mooned.... others don't I guess
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Posted by TwattyMcCocknoodles Nov 23rd, 2012 at 7:50PM
the same reason every rose has its thorns
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Reply by starship33 Nov 23rd, 2012 at 7:51PM
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Reply by TwattyMcCocknoodles Nov 23rd, 2012 at 7:52PM
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