Please define 'colonize space'. If you speak about staying within the solar system, that is something we could envisage today. If you want to discuss colonizing extra worlds, well that's another story and this is not even possible today, with the physics knowledge we have.
Please define 'colonize space'. If you speak about staying within the solar system, that is something we could envisage today. If you want to discuss colonizing extra worlds, well that's another story and this is not even possible today, with the physics knowledge we have.