What is this planet?
Mars
What is this?
shooting star
What is it?
rock
What is it?
iron
What is this planet?
satellite
What does he do?
astronomer
What is this?
solar system
what is it?
sand dune
What is this?
spaceship
What is this?
observatory
What is his job?
astronaut
What is it?
soil
What is this ?
ice cap
What is this?
planet
What is it?
crater
What is it?
telescope
What is this planet?
Earth
What is this?
comet
What is this?
galaxy