Space exploration is not for you. Your tax share of this mission, depending on where you live, is either zero or nearly zero. Asking for personal benefits from a space probe is silly.
However, your children, and their children, and so on will likely see benefits from it. The future is impossible to predict, however, so nobody can say what they will be. The principal benefit of missions like this is the new knowledge they generate. That knowledge is then the intellectual heritage of humanity for eternity, and can be used for any number of inventions, benefits, and future discoveries.
You are thinking too small. Even if somehow nothing ever comes of this mission, this is the sort of thing that humanity does not because it has survival value, but because it gives value to survival.
However, your children, and their children, and so on will likely see benefits from it. The future is impossible to predict, however, so nobody can say what they will be. The principal benefit of missions like this is the new knowledge they generate. That knowledge is then the intellectual heritage of humanity for eternity, and can be used for any number of inventions, benefits, and future discoveries.
You are thinking too small. Even if somehow nothing ever comes of this mission, this is the sort of thing that humanity does not because it has survival value, but because it gives value to survival.