All across the globe, various kinds of UFO's have been spotted. From cigars to triangles, from saucers to boomerangs. The shapes are as diverse as life itself. But there is one shape that has its roots in ancient times (see DROPA). The saucer with what appears to be a hole in the center and a knick in one corner. I've seen plenty of footage with this same sort of disk. The best evidence (supporting the existence), of this type of vehicle can be found in this NASA footage on YOUTUBE.

What do you think?

http://www.youtube.com/watch?v=UbPR1yI3XSI&mode=related&search=