Lowest pressure is 10 image showing the planets stats has been updated.

a nagtiv pressure is also impossible

Update: Changed the temps to reflect both current planets and real world maximums. Current ranges from day and night are -223 night to 464 day time.

Thank you for pointing that out, I will make the adjustment. From what I think is in game it limits the the temps based on the core game code.

Regarding the bottom note, yes, that's called de-gassing ores. Only possible with a bit of something in the furnace, and I think it has to be above a certain temperature threshold as well. This isn't a bug, it's meant to be like this. Otherwise people would have very easy sources of infinite gases.

It's also why you can't get gases from anything you separate out using a centrifuge as well. Rocketwerkz got on to this very early on to make sure these kinds of exploits don't exist. Want more gas, find more rocks. Simples.

-373C though? Not a thing - you'd best update this to -270C or something as getting to absolute Zero is impossible, getting lower than that is physics nonsense :)

its fun to break the law of physics with a temperature minimum of -373°C , you should correct that to -273°C (Zero Kelvin), the absolute Zero Point Temperature. Only my advise..