How are stars important to the Milky Way?
How has the knowledge and perception of the universe changed over the past century?
What effect does dark energy have on the universe?
What is another metaphor (aside from the fact that a piano can only produce certain notes) that could help someone understand energy quantization at the atomic level? Explain your answer.
What do scientists believe may be the fate of the universe? Which theory do you feel is the better explanation of what may happen? Why?
