Mary felt very confident in this class. This was, in fact, the only class yet that she greets the professor in. Settling into her seat and looking back towards the professor, Mary wondered how to answer the question. The already knew a lot.

"I know that the stars are large, hot balls of gas in the universe. They are impossible to count because the universe is infinitely expanding. They are constantly being born and dying. The death of a star is often a violent event, while the birth generally happens in groups with other stars. The closest star to us is the sun, and everything in the solar system orbits around it, though we aren't the only star with a system of planets."