What are some things that make up a universe?
After the Big Bang, just three things resulted in the formation of this vast universe... protons, neutrons and electrons.
.. I completely agree with the answer and that's purely true!
Not quite everything, but a great deal of things, on Earth at very least. Things that are not made up of matter include electrical impulses and heat which are both forms of energy. Matter in the wider sense however, only makes up around 4% of the total energy of the universe. Other forms of 'matter' distinct from the kind we are familiar with, such as dark energy and dark matter, make up the rest of…
I am in this universe as the other contains my anti-matter self. If I were to meet my anti-matter self, we would both annihilate immediately. Also the collective atoms that make up myself all originated in this universe. The universe contains the same number of atoms always, at least this one does. So I will be always be here in some form or fashion. Hopefully form!
They expect the Universe to continue expanding. Right now, the evidence is that the expansion is speeding up. They also expect entropy to continue increasing, so in the distant future, there will not be any free energy left to support life, for example. They also expect quite a few other things; the Wikipedia article on the "future of the Universe" can give you some ideas.