Yes. The good news is that the end is not near. Imagine how many zeros are there in trillion years. The bad news is that when it does come, it's not going to be pretty. I don't know which theory is more accurate in predicting the unknown unknowns, but I like the "Dark Energy" theory which seems to be consistent with "Big Bang" theory. "The universe will die. The sun and other stars like it will throw out heat until they have no more energy to burn. The big bang threw everything outwards at a massive rate. As it gets bigger, so the gaps between matter get bigger and are filled with "dark energy". Instead of gravity pulling everything back down to a "big crunch" the dark energy accelerates the expansion process, pushing everything further apart faster and faster. In the end everything will be a cold, sad, blackness as the stars all go out, or are too far apart for us to see anything - but "us" will be long gone. " Source: http://www.bbc.co.uk/radio4/science/briefhistory.shtml