Explanation:
Noctilucent or night-shining clouds lie near the
edge
of space.
From about 80 kilometers above Earth's surface,
the icy
clouds can still reflect sunlight even though the Sun itself is
below the horizon as
seen from
the ground.
Usually occurring at high latitudes in summer months, the diaphanous
apparitions
are also known as
polar mesospheric clouds and may be connected to
global change
in the lower atmosphere.
This impressive 360 degree panorama made from 34 separate images
captures an impressive
display of noctilucent clouds all over the sky.
It was recorded last month from Vallentuna, Sweden.
The photographer reports that the display was like a noctilucent cloud
storm, one of the best he's ever witnessed.
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