What makes gravity a vital factor within our universe? How does it influence the universe?

How are the sun and moon different? Compare and contrast these celestial bodies.

What would you say is the strongest force in our universe, the sun, the moon or the earth? Support your answer with at least 2 facts.

If you were an astronaut on the moon, what would you experience? What would you see from your perspective?

Which one of the theories about the moon's creation do you most agree with and why?