> Actually if you tank them with sustainable fuel..
Getting Starship to be useful for Mars missions requires actually building industrial-scale Sabatier machines.
This is something he has known about, and talked about, for a long time; it's (apparently) why they're designed around methane.
However, we don't see any reports of work on such machines.
This is both bad for the environment here on Earth, and also an indicator that despite what he's been saying, Mars has been less of an interest for several years before he officially put the moon and space data centres ahead of it.
Getting Starship to be useful for Mars missions requires actually building industrial-scale Sabatier machines.
This is something he has known about, and talked about, for a long time; it's (apparently) why they're designed around methane.
However, we don't see any reports of work on such machines.
This is both bad for the environment here on Earth, and also an indicator that despite what he's been saying, Mars has been less of an interest for several years before he officially put the moon and space data centres ahead of it.