the phenomena known as lenticular cloud formation
dis is known as the brocken spectre...this happens when a climbers shadow is
cast onto the cloud from above or below during a setting sun...the last
pic also shows how it can be mimicked using a car headlamps in fog
these are known as cloud shadow...it occurs when a setting sun casts a
cloud shadow upwards which gives the appearance of darkening the sky
where the shadow normally is
known as the morning glory...it is a hollow pipe cloud formation that
occurs about once a year in Australia and it rolls across the sky at a
fast pace(for clouds anyway)
moons shadow over antartica
known as noctilucent cloud or "night shining".it occurs when
clouds(actually ice formation) form about 50 miles above the highest
normal cloud during the night...at certain times the sun which has
already set still has a direct line to the high clouds which reflect
the light and cause them to glow
