the.com/mesosphere
the atmosphere's middle child, where meteors die and clouds glow electric blue at night.
meteor graveyardMost shooting stars burn up entirely here.
coldest layerTemperatures plunge to minus 90 Celsius.
too high, too lowAbove planes, below satellites — barely explored.
noctilucent cloudsHighest clouds on Earth, glowing after sunset.
the ignorosphereScientists nicknamed it that for being unreachable.