The moon is our closest neighbour in Space, being the sole natural satellite planet Earth has. It's 384.403 km away from Earth, which means that if we wanted to travel to the moon by car at a speed of 80km/h, we'd need 200 days to reach it.
The moon always shows us the same side, because the time it needs to rotate on its own axis is the same it needs to travel once around the Earth. This is why in any moon phase, we always see the same side. The illuminated area varies depending on its angle to the sun—and so we see the moon "grow" and "disappear" in front of our eyes. The moon cycle lasts for 27 days and 7 hours. Due to a very low presence of gravity, the moon's atmosphere is very thin, unable to retain any gas molecules on its surface.
On Battle Space, every planet has its own resources. Conquering those planets, you can increase your own gas, metal, or energy resources, as well as your funds to build facilities, fleets or level up your existing facilities, amongst other things. Many planets may only have one element, but you will also find planets with several available resources—not only in your solar system but in the entire galaxy.
Conquer as many planets as you can and become the galaxy's most powerful!