Several very unusual round luminous circles have been observed in the night sky world-wide.
Some of the observations have been made by astronomers who simply cannot explain what they are seeing.
Are these strange objects interdimensional portals in our planet's atmosphere, multi-colored, glowing UFOs or perhaps an unknown planet?
What ever they are, these objects are very puzzling and they do not correspond to any known object on our world. Rest of article with all images and video here: