On March 14, 2016 one of the smartest men alive passed away. During his life, he contributed to many theories in the science field and even discovered a few of his own. He was diagnosed with ASL at the age of 21 and was given two years to live. When he died, he was 76 years old. This man, Stephen Hawking, is one of the most famous physicists of all time. One of his most famous quotes goes, “Remember to look up at the stars, not down at your feet.” So, that's what we'll be doing today. Looking into the cosmos at theories on how the universe will end. We’ll be looking at The Big Rip, which, besides its name, is actually the smaller theory here, the Big Freeze that will give you chills, and the Big Crunch that will eat you up.