The universe is expanding. The universe never changes. The universe began in a hot, dense state. The universe began at a single point and time.
I gave my students this multiple choice question: Which of these statements is not considered part of the Big Bang Theory?

Only one answer is correct among these 4 choices:
- The universe is expanding.
- The universe never changes.
- The universe began in a hot, dense state.
- The universe began at a single point and time.

Could you tell me which one is correct?

The universe never changes.