Objects discovered by NASA are nearly impossible to see even with the best telescopes. Data needs to be accumulated for a very long time, so it is premature to talk about possible water and life on these exoplanets. Moreover, thinking about space flights over such distances.
I doubt there are any devices now that can fly 40 light years and beyond. Theoretically, based on knowledge of the physics of space flight, it is possible to create such devices. There was an example: the American satellite "Solar Probe", which was launched using our technology. According to Lebedev's law, light presses on the surface on which it falls. The effect is negligible, but if you take a huge "sail" that intercepts a lot of light, and spend a lot of time, then, in theory, it can be overclocked. But the question of technology slows down these developments.
If we talk about space tourism, then there are enough applications from those wishing to go to orbit and back. But of particular interest is still sending a person to the moon - in this direction one could move.
I have already said during one of my lectures that man has nothing to do in space. This, incidentally, caused the disagreement of many of my colleagues. After all, for some reason, people think that as soon as we get to some planet, the news will immediately fall like a cornucopia. But I have always argued that the best place for a person is on Earth. And it's best to explore new objects while on your planet. A person sent to another planet (the same Mars) will very quickly understand that, apart from sand and stones, he sees nothing else. It is best for a person to stay on Earth, because he is ideally adapted to this.
Leonid Ksanfomality, leading specialist of the Space Research Institute of the Russian Academy of Sciences