NOW LIVE! Today's the day you meet your new best friend. You don’t have to leave Wolfy behind... In 'Pets & Sidekicks' your companions level up with you!

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Message: <blockquote data-quote="Binder Fred" data-source="post: 6099328" data-attributes="member: 63746">Well, yes, I was sort of assuming same temperature ranges and gas composition. That said, enviro-suited alien are cool, it's true <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile    :)"  data-smilie="1"data-shortname=":)" /> Multi-century thawing cycle, maybe? A wandering planet with frozen volatiles rather quickly degasing when captured by a chance-met star? Remember though that your atmospheric loss to space may be slow, but you still need at least a good handfuls of million years of the present condition for organisms to have evolved to take advantage of them (ignoring useful pre-adaptations and assuming we're talking natural rates of evolution for the moment, of course). VV can likely give us a better timeline on that: how long *does* it take to evolve wings from scratch, VV?Your N₂, O₂ CO₂ and Ar would still be leaking out at accelerated rates though (since that's solely a factor of gravity and the average speed of each individual gas molecule, as affected by its mass and temperature), so you'll have to depend entirely on your initial "boosted level" of Ar to 1. compensate for the higher loss over time compared to earth, and 2. generate your increased air pressure. That would seem to indicate that you'll have to up its relative proportion quite a bit. Quick calc shows that if you wanted to up air pressure to 2 atm in pressent earth condition solely by changing the mix, as it were, you'd need about 50% Ar compared to the 1% we have now (I'm not entirely up on my gas cynetics though, so that might be wrong)... Is there a reason your atmo needs to be breathable by human? This is M&M after all. Just take a Run out of Air complication and/or a 1 PP Immunity-your atmo (this last only if you're expecting to meet it again in game, else you can power stunt it) and there you have it... Or, you know, just go with the "increased degasing" or "nested dyson shells" ideas I initially mentionned? <img src="http://www.enworld.org/forum/images/smilies/devil.png"  class="smilie" loading="lazy" alt=":devil:" title="Devil    :devil:" data-shortname=":devil:" /> <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile    :)"  data-smilie="1"data-shortname=":)" />It might also be a good idea to check with Jemal on the spread of artificial grav equipement in our galaxy (and the possibility of turning if off in only *some* sections of any particular ship/habitat?). I have the impression that Jemal might be going with the SG, Star Trek, Star Wars etc tropes on this one (i.e. 1g everywhere). As we'll probably be spending very little/no time on any PC's home planet, that might limit her flight ability some, to say the least.<img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile    :)"  data-smilie="1"data-shortname=":)" /> Worried is not the term I'd use: it's just part of the fun of a sci-fi game for me.For example: Capturing superheated gas from a star? I understood the process to usually go the other way around (solar winds, etc, stripping away a planet's atmosphere). Is that possible?</blockquote>

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