|Galaxies are enormous, but they are not the largest structures in the Universe. We find that the galaxies themselves group into clusters of galaxies held together by mutual gravitational attraction, and that clusters of galaxies are themselves associated with even larger superclusters of galaxies. In this lab we will look at these largest structures that we know of and use them to determine the value of Hubble's constant, which tells us the rate of expansion of the Universe itself.|
In this lab you will learn about the expansion of the universe and you will use some of the same methods astronomers use to find out how rapidly the universe is expanding. You will also use these techniques to determine the age of the universe. In the process you will also learn about clusters of galaxies.