Telescopic text

Science fiction writing

Are they on the moon?
These people are astronauts who are hovering around earth and the moon. They are about to land on one of Saturn's moons and research the aliens that live there.

Are these creatures aliens? 
Those people are people who look at the moon and the earth to measure how big it is.

Are they going to live in the spaceship?
They live like astronauts. They have rocket-boots attached to them. They sleep in their space room and float in their sleep. They eat food from a computer.