Comment Re:Can it produce oxygen? (Score 1) 23
Presuming you could do it at all (and that's a pretty big assumption) it isn't going to be blown away in a few years. It would take hundreds of thousands, perhaps even millions of years for the atmosphere to decay. It certainly would endure long enough for a colonization effort, but that presumes you can pull it off, and again, that's a massive "if". You would need some really huge rockets to intercept and redirect comets and other material to start bulking up the atmosphere.
In a future where we have fusion or some other form of energy, aka Star Trek, I suppose why not. A few decades or centuries of robot spacecraft smunching stuff into Mars wouldn't cost much more than not doing it at all.