Have a look at this. This phenomena happened Wednesday October 7th over Moscow.
I don’t know what it is, but it sure looks very strange. Not that much info out on it yet. However the scientists are blaming cold and warm fronts meeting, and the sun shining from a certain direction. It doesn’t seem that likely to me but then again I’m no meterologist.
It’s an interesting phenomena whatever caused it. The odds of nature forming something that precise in such a chaotic system as cloud formation seems a bit far fetched to me.
What do you guys think?
It does seem a lot like it has something to do with cloud seeding or a similar activity or effect, see more here
USAF photo; boxed caption in the lower right reads “Effects of seeding Altostratus Clouds over Green Bay, Labrador: 45 minutes after seeding with dry ice”. Photo and boxed caption obtained from Sewell, W.R.D., et. al., 1973: Modifying the Weather; Western Geographical Series, Vol. 9, University of Victoria, Victoria, British Columbia, Canada).
Also have a look at the fallstreak hole cloud
And why not the scientific possibilities of cloaking devices while you’re at it 🙂