When the second mission finds Luke on mars, he is in the greenhouse. This is a tentlike structure. It can clearly be seen flapping in the martian wind. There is no way this tent could be pressurized because if it were pressurized it would be taught like a baloon, not blowing in the breeze. Yet the astronauts are all seen inside the greenhouse without their helmets.
I agree that this is pretty lame looking, but.... it is the partial pressure of oxygen that is important. As long the partial pressure of oxygen is correct it doesn't matter how much pressure the atmosphere in general has(within limits of course). You can look up how this works if you can find the appropriate book.
Partial pressure of Oxygen is irrelevant in this case;
Mars atmospheric pressure is approximatly 0.7% that of Earth atmospheric pressure, so the bare minimum pressure needed (in order for the astronaut's bodies not to explode) would be more than enough to cause the 'tent' to become taught.
Now that I think about it - seeing as Mars' atmosphere is such low pressure, would there be enough force to cause a noticeable wind in the first place?
![[Slipups.com Logo]](/images/slipupslogo_small.gif)
