Can anyone help me with this question??? Or at least lead me in the right direction? Two students are having a discussion after studying the Hubble Law. Student 1: According to the Hubble Law space is expanding. Therefore our galaxy is bigger today than it was in the past and will keep getting bigger. Student 2: No. Our galaxy is a gravitationally bound system. So it is not getting bigger but it is moving at greater speeds as it ages. Which student do you agree with? Discuss why you agree or disagree with either or both of them.