This is a thread for any and all intelligent astrological conversation.
I personally am interested in Gliesa 581, the most earth-like planet we've stumbled upon. Sure it's impossibly far away, but with ion propellant technology we've made I think reaching near lightspeed is possible, therefore easing time expendature.
Note: I'm not sure if ion engines can get going fast enough to reach near lightspeed, all I know is that they keep at constant positive acceleration.