Space, we have been told, is the final frontier.  But is it the final frontier, meaning is the universe, as it expands through space, going to end up destroying everything one day?  Cosmologists say yes.  Katie Mack, a theoretical astrophysicist and cosmologist, explains five different ways the universe could end in terns that non-astrophysicists can understand and shows how studying the beginning of the universe and the after-effects of the big bang guide is in trying to determine how it all may end.  Not to worry, though.  We still have trillions of years for any of these scenarios to take place.  Well, except for one, which could happen at any time.