I know that this question has been answered many times but anyone can tell me how can i build a moon, thanx for who will.

A moon can be formed out of the Debris generated from a very large attack around a planet. There are several other topics considering this around the forums if you need to know more in depth information about the moon.

-Istalris-

Istalris is correct. There is no reliable way to "build" a moon. You can't purchase it as you would a tech, ship or a mine.

I thought you had a 1% chance of getting a moon with a new plane and that was the only way?

how much debris dose it take to make a moon?