system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Besides the initial excitement about a new planet, what is the appeal of Proxima B if it would take so absurdly long to get there to study it?
gpt
It is a planet that is orbiting the closest star outside the solar system. This is the best opportunity of studying a planet orbiting another star we have. It is also the closest one if we want to venture out and colonize other solar systems. The fact that it is in the habitable zone is promising. Another thing to consider is how common these planets must be. This was what we found when we were looking at the closest star. Finding such a planet suggests that these are very common in our galaxy.