Facts about Ganymede: the biggest moon:

Did you know which is the biggest of the solar system?

Moon of Jupiter Ganymede. Can you imagine how big is this?

You can understand with this fact that:

If Ganymede starts orbiting the sun then it would be a planet like earth.

( Here is a list of the 10 biggest moons)

How can a moon become a planet by just changing its orbit?

Of course, you are right but look here:

Ganymede is larger than both planet Mercury and Pluto (that we accepted as a planet)

And is 2/3 the size of Mars?

( you can know how many moons are there in our solar system)

And the second fact about it is that Highly cratered dark regions cover a large part of its surface

It is due to the heavy impact of asteroids or comets and dates back to around 4 billion years ago.

You can see the full post and know how many moons are there in our solar system with 10 facts about all moons. See

See factshungry.com