Is The Universe Infinite or Finite?

Ayah Bargouthi, 9A

An Introduction

How the Solar System was thought to look like :

Here is a Distance-Time graph demonstrating the Expansion

As you can see, it expands in all directions

Copernican and cosmological principles

In the slides before, it was said that Hubble rejected the idea of Earth being at the center of

the Universe. This is because they follow the “Copernican Principle”. The “Cosmological Principle”, an extension of the Copernican

principle, states that the Universe is homogeneous and isotropic. Homogeneous

meaning “Of the same kind” and isotropic meaning “having a physical property which has

the same value when measured in different directions”. A homogeneous and isotropic