the.com/mesosphere

the atmosphere's middle child, where meteors die and clouds glow electric blue at night.

means The layer of Earth's atmosphere above the stratosphere and below the thermosphere, roughly 50 to 85 kilometers up, where most meteors burn up and temperatures plunge with altitude.

from Built from Greek mesos, "middle," stitched to "sphere" (Greek sphaira, "ball, globe"). The mesos is the same middle you find in Mesopotamia ("between the rivers") and Mesozoic ("middle life"). A 20th-century scientific coinage, named simply for its place in the atmospheric stack — the middle ball, slotted between the layers above and below.

meteor graveyard
Most shooting stars burn up entirely here.
coldest layer
Temperatures plunge to minus 90 Celsius.
too high, too low
Above planes, below satellites — barely explored.
noctilucent clouds
Highest clouds on Earth, glowing after sunset.
the ignorosphere
Scientists nicknamed it that for being unreachable.
for instance

mesosphere of earth — atmospheric layer 50-85 km altitude where meteors burn up and the coldest temperatures occur

mesosphere of mars — atmospheric layer on mars studied by nasa rovers to understand martian climate

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