Guided Exploration: Universe Zone

Overview: The universe is all the matter and space in existence. This zone explores the expansion of the universe and the limits of observation. Topics include the universality of physical laws, the Big Bang and the evidence for it, and how redshifted light provides evidence for the expansion of the universe.

1. Universe Wall

Explore how our universe is changing, how gravity has shaped it, and how scientists use light to measure distance. What is the observable universe, and why is our view of it limited? What is the cosmic microwave background?