Do you think humanity will ever create colonies on the other planets (not just couple of trained astronauts but a civilian population in a city or something similar) and depending on your opinion why not / where and when do you think they're likely to be created first?... also will the frontier of colonising be in our own solar system on Mars for example or on some exoplanet
It's really hard to say whether or not it will happen. There are so many unpredictable factors. I do believe for sure that we could colonize another planet. It seems that our space technology is improving constantly. I don't understand why we still haven't been back to the moon, but I think it'll all pretty feasible. Why it might not happen... I think that other problems on earth may distract us too much. Our efforts may be diverted, then space exploration could lose funding. I think the race will continue, but maybe landing on the moon again would be a good first step before going to Mars, for example.