From a plane you can see the fields, cities, mountains or rivers below. If you go into space, you can see more and more of the earth. Many man-made satellites have been sent up into space to look at the earth, the stars and other planets and to learn more about them.
The moon is our neighbour in space. It is smaller than the earth. Plants can't grow on the moon because there's no air or water on it. The moon doesn't have its own light. It shines back the light of the sun. When the sun is shining on the side of the moon facing us, it looks like a great round ball. We can't see the moon when the sun is shining on the side of the moon facing away from us.
In fact, the moon is far away from us. It is about three hundred and eighty thousand kilometres away from the earth. Of course, we can fly to the moon in a spaceship. A spaceship flies very, very fast. It only takes more than three days to get there by spaceship!
