The laws of physics, as we currently understand them, don't permit us to get anywhere OUTSIDE the solar system that might harbor life any time within our lifetimes.
Our current level of technology doesn't permit us to get anywhere interesting that might harbor life WITHIN the solar system in anything less than YEARS.
However, as human beings, we have demonstrated over and over again that we find ways to get around the limitations imposed on us, and I have confidence that we will one day figure out a way to get around this as well.
500 years ago, we KNEW that humans couldn't fly.
100 years ago, we KNEW that the sound barrier couldn't be broken.
Today, we KNOW that the speed of light can't be exceeded.
I wonder what we'll KNOW 100 years from now?