Paint the inside of a shoe box using black tempera paint.
Allow the paint to dry completely.
Paint small white stars onto the black paint using white tempera paint.
Press gray clay around one of the sides of the shoe box.
Sprinkle gray sand onto the gray clay. This will be the bottom of the space diorama.
Cut out an astronaut shape and a space vehicle shape from construction paper.
Use colored pencils to add detailing onto the astronaut and space vehicle.
Glue the astronaut and space vehicle onto the gray clay.
Allow the glue to dry completely.
Cut out planet and comet shapes from construction paper.
Glue the shapes to pieces of string.
Glue the open ends of the strings to the top of the shoe box so they will hang down as if suspended in space.
Allow the glue to dry completely before displaying the astronaut diorama.