The Universe This assignment will introduce you to the vastness of the universe. When you have completed this study guide, you will know what some of the largest objects in the universe are and what they are made of. The Universe and Its Formation 1. Describe the universe and give two examples (that last part is a joke, why?). 2. Astronomers use a law of wave motion to determine if galaxies are moving away from us or towards us. The is the apparent change in wavelength of light caused by the relative motion of the source and the observer. If a galaxy is moving away from us the wavelength appears longer than it actually is, so it appears redder than it actually is. This phenomenon is called a 3a. More distant galaxies have greater red shifts than closer galaxies. Using this fact Edwin Hubble was able to determine that more distant galaxies are moving away from us faster than closer galaxies. State Hubble's Law. b. Hubble's Law led Hubble to realize that the universe is 4a. What current theory describes the process believed to have formed the universe as we know it? b. How old is the universe? c. Describe the Big Bang Theory and give a brief history of the Universe