I read in the German magazine "Spiegel Online" that the next new Mars-Rover is, in the year 2020, going to bring equipment to Mars to produce oxygen for breathing. These instruments should produce oxygen from carbondioxide. So, astronauts could have oxygen for breathing from the Mars atmosphere. I think that would be really amazing that in this way there could be human beings on Mars - but that is a long way to go. I don't think I will see, that this is going to happen. I would not like to go to to Mars. I make only a short story out of it. Next time I maybe write longer stories.