Venus does not have any moons. Our planet, Earth , is very unique. The environment is rich enough to support life, and many life forms thrive. Unlike any of the other planets, Earth is covered by vast quantities of water. Temperatures on Earth are very moderate compared to the other planets.
Humans can live relatively comfortably at almost any location on the surface.
Our only moon is a quarter the size of Earth. It rotates on its axis at exactly the same rate that it orbits the Earth, and so we always see the same side of the moon. There is no air or water on the surface of the moon, and there is also no geological activity. The moon is the only other place in the universe that people have traveled to. Mars is a rocky red planet about half the size of Earth.