yeah its 20 lightyears away. If we were travelling at THE SPEED OF LIGHT it would still take 20 years to even get there. Im sorry but not only can we not even travel relatively close to the speed of light, who is going to dedicate 20 years of their life on basically a suicide mission? If they got there and back, it would be 40 years, where would the oxygen come from? The food? The water? Im guessing Star Trek will be a reality in our future lol.