Are we the only living things in this whole universe?

Third, your statement that 'there is bound to be life somewhere else' is simple nonsense. It is true only if the universe is infiinite - which it might or might not be. If the universe is finite, then we just don't know whether there is, or is likely to be, life elsewhere. read more

We don't know the WHOLE universe. We don't even know our solar system well enough. Some numbers about the universe to give you faint idea: Our Beloved Sun is just a tiny star in our Galaxy. The Universe probably contains more than 100 thousand million (100 billion) galaxies. read more