Hum. Being able to produce oxygen at very large is one thing, but creating an atmosphere is another. There are reasons why Mars can't retain its atmosphere, ev

Hum. Being able to produce oxygen at very large is one thing, but creating an atmosphere is another. There are reasons why Mars can't retain its atmosphere, even if those reasons are still a matter of scientific research. A search on the web will give you numerous papers on the issue, many from NASA. There is no point sending humans into space, except to get the hundreds of billions of budget it requires. NASA and SpaceX are manipulating the public opinion to fuel the dream of humans in space - despite no scientific gain. We already know that humans are really not doing well in space. Of course, the space industry will give the tautological argument that this is exactly why we must going on, to find solutions in the long term. If the point is to understand the universe and make progress in all fields of Physics, robots are 10 times less expensive and more reliable. See the rovers and the helicopter on Mars, the James Webb telescope and so many other examples. The International Space Station has cost an gargantuan amount of money for the scientific results it produced - except about humans in space. And precisely, these results say humans do poorly, and much more so than advertised. There is no conspiracy here, just the lack of interest of journalists to make that clear to the public. And the space industry is clever enough to fuel the dream of the public so that elected officials give them the dollars. Source: I personally know one of the MD in charge of the medical conditions of astronauts in Europe. And my father is a space engineer and my aunt an astronomer, so I can say that this is common knowledge in the space industry and academia.