With the advent of the Summer Solstice, just a few weeks away,
observers in the northern hemisphere are once again seeing the
elusive clouds, know as noctilucent clouds. Noctilucent, comes
from the latin, meaning “Light Shining”.
These are the highest clouds known and are some 50 miles above
the surface of the Earth.
May 19th marked the first time this year that observers reported the
Clouds and many believe that noctilucent clouds are formed by water
vapor and micro meteor particles, high up in near space.
Some say that the appearance of these clouds in mid latitude locations,
may be a sign of climate change, but others are not so fast to agree!
So, if you have a clear night…some 30 minutes after sunset in the
northern hemisphere, you may get to see and record this most amazing
These clouds were first seen in 1885 and thought to be sparked by the great
Krakatoa explosion of 1883.