If it's frozen atmosphere, there'll be a very low volatilization point.
On the mountaintops the glacial masses of frozen atmosphere were already melting and thus added further breathable air to the environment.
To you this frozen atmosphere is pure imagination, isn't it?
At the top, she must punch her way up the icy waterfall where the frozen atmosphere has dribbled down five or six flights of stairs.
All gone now, crushed under the weight of a frozen atmosphere.
Sparkling mists of frozen atmosphere hung like chill puffs of breath.
It flared suddenly and the tug lifted, to hover expertly a brief distance above what seemed an unmarred field of frozen atmosphere.
This will, they hope, convert this frozen atmosphere back to gas.
And then all conversation stopped as the main dorsal airlock on the sleeper ship opened with a puff of frozen atmosphere.
Some true planets remained, bare rocks or sheathed in their own frozen atmospheres.