I have heard that the moon is an asteroid. There have been many different suggestions put forth about the origin of the moon. It is currently believed to have been created through the ejection of a substantial amount of mass from the earth upon an impact of a small asteroid. The moon is too large an asteroid to have been captured by the earth in its orbit. Since its creation, the surface of the moon has been constantly changing through the impact of other small meteors and comets.
Space is a volume of emptiness that encompasses everything.
It is made of nothing but encloses everything, including planets, comets, moons, asteroids, stars, dust, gases. As far as we can tell, almost every part of space between the different objects can be found to contain some tiny amount dust or gas at some times traveling at some speed relative to us. I have heard Pluto is really a moon or just a ball of ice. The space shuttle is launched with the help of two external solid rocket motors and the main engine of the shuttle itself. These rocket motors create a high velocity exhaust of gases that propels the shuttle in the opposite direction.