Because the hot gas is pervasive, cooler gas embedded in it must be under the same high pressure.
However, plasmas in thick cool gas do keep moderately sharp boundaries.
Even the cool blue gas couldn't screen out all the disk radiation.
The cool gas, in turn, can draw heat away from refrigerators or air-conditioners.
At present, most star formation occurs in smaller galaxies where cool gas is not so depleted.
The honeycomb could be cooled by ducting relatively cool gas through it.
They are caused by cooler gasses in the space around the sun, absorbing only their favorite parts of the sunlight as it passes through.
Starburst galaxies feature a large amount of cool molecular gas in a small volume.
NGC 1553 has associated with itself cool gas and dust.
A compressor compresses the cool gas known as a refrigerant, causing it to become hot.