I'm sure there is, how many galaxies are there? Universes are there? There are too many questions that need to be answered, until they are, we can't speculate whether there is other life.
And..! The sun will be gone in 40 Bil' years? I'm sure by then we can figure out how we can survive without the sun. Technology is advances as we speak. The Human race won't allow itself too die.
Also, we wonder if Aliens exist or any other form of being? Maybe the Aliens or other form of being is wondering whether Aliens or other forms of being exist.