How's it going to end?

Question

is it inevitable that everything will one day burn out and stop just like it started.Everything will eventually burn out and break down into the gases it used to form all.I remember hearing a theory that in the end of it all you will have the basic gases just like how it started but without the elements or gases to pro create so each element will break down until there is nothing.Any theory's?

Answer 1

Well, it depends. On a human scale? We have about 5 billion years left unless we either 1) destroy ourselves before that, which I think is the most likely or 2) figure out a way to inhabit other planets. In 5 billion years, the sun will slowly run out of fuel and expand, consuming all the close planets up to about earth. The intense heat would instantly bake anything on the surface, so thats what you might consider the end.

On a much larger scale, there is a theory that protons aren't stable and will slowly decay. Thus, all matter in the universe will eventually wind up decaying into what it all started out as.

Answer 2

I think that it is well understood that the Sun will self destruct in about 5 Billion Years when it runs out of hydrogen gas to fuel the nuclear fision going on inside of it. When that happens the Sun will expand in size four to five times its present size and consume all objects in its near vicinity such as Mercury and Venus, probably the Earth also. Intense heat and radiation will boil off all water and liquids on the earth and turn the surface of the Earth into something resembling that of the Moon - a dusty cinder rock.

Long before that, the Earth as we know it will have ceased to exist. My guess is that will happen shortly after November of 2008 if Hillary Clinton or Barack Obama make it into the White House.

Answer 3

Hi, If you are talking about deep, DEEP time then there is a theory that protons are not infinitely stable. They decay. Is this is so then all will eventually be matter that has decayed.