Are other planet's moon exactly the same as our moon?
I sometimes wonder why other planets have multiple moons and we only have one moon, I wonder what would happen if we didn't even have a moon.
- CarolOklaNolaLv 710 months agoFavorite Answer
No. Earth's Moon is unique. It was probably created from a Mars sized planet impacting Earth at a glancing angle. The moons of other planets are unique too. Some were gravitationally captured. Some will escape their planets an become asteroids. Triton (Neptune) is bigged er than Mercury and was gravitationally captured.
Earth's Moon stabilizes Earth so the tilt of Earth's rotational axis is relatively stable, unlike Mars with its 2 small moons, one which is getting closer to Mars and will eventually be torn apart to become rings. The Moon may be one reason why complex life developed on Earth despite impacts from space.
- SharonLv 610 months ago
My former astronomy professor is the author of the only book I know of devoted to all the moons of the solar system. They range in size from 3250 miles for Ganymede to 0.6 mile for a couple of Saturn's moons. No moon is exactly the same size as our Moon, but Io is close. However, Io is covered with live volcanoes and hot lava, neither of which is found on our Moon
- JohnLv 710 months ago
No thing is exactly the same as any other thing.
- FredLv 510 months ago
Our solar system has a vastly different moons.
Without the mini planet impact shifting the Earth's polar axil tilt we would be absent yearly seasonal climate cycles.
Absent Moon satellite, Earth would be absent tidal forces.
Absent such forces life would be different formed on Earth, evolution of Earth life slowed and narrowed.
Such limiting could effect the development and success of humanoid life forms.
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- busterwasmycatLv 710 months ago
As with most things, the moons are unique individuals although they do possess many common features. The earth is actually unusual because we are close to a double-planet (our moon is very large for the size of the planet).
- RetiefLv 710 months ago
Every one of the over 150 moons in our solar system are different - some are large like our moon, others are small objects that are captured asteroids.
If we didn't have a moon, the Earth's rotation would have a larger wobble so our climate might be more volatile than currently.
And the animals that rely on the full moon for reproduction would have evolved other triggers.
And without the larger tides from the moon's gravity, its possible that life on dry land would have taken longer to evolve.
- AdamTheAtheistLv 710 months ago
- SkyLv 710 months ago
No. Moons come in all different sizes and shapes (typically round, but if they're really small like the moons of Mars they don't have enough gravity to be spherical). They also have all different colors and textures depending on numerous factors. Look at pictures of the different moons in our solar system and you'll see what kind of variety there is. And if we didn't have a moon, our nights would always be dark, there'd be much less in the way of daily tides, and dogs would have to howl at the streetlights.