Re: What is this?
On IPOD page (NASA related) there is an explanation regarding the above video:
"In sum, this hypothesis holds that a lightning discharge in a thundercloud can temporarily change the electric field above the cloud where charged ice crystals were reflecting sunlight. The new electric field quickly re-orients the geometric crystals to a new orientation that reflects sunlight differently. In other words, a lightning discharge can cause a sundog to jump. Soon, the old electric field may be restored, causing the ice crystals to return to their original orientation".
source: _http://apod.nasa.gov/apod/ap111108.html
Recently saw another video, also highly unusual , and i am not sure if the same explanation could be applied, but it seems something related to ice cristals ...
_ https://www.youtube.com/watch?t=43&v=W_hzZWc5gVU