What was the main idea of this article, what was it about?
What is the ‘Goldilocks zone’ or the ‘habitable zone’? Can you add detail to explain what this term means.
Why is mass important? What does it have to do with gravity?
Opinion: how would you feel if you found out there was extraterrestrial life? Why? I would be amazy that there is more life that is not on earth.

