Description: The sky was perfectly blue. I work on my computer at home, I wanted to smoke a cigarette in my garden, and I saw that enormous black circle over my house. I took my digital camera: Canon Powershot G1, and I took these pictures with the LCD screen because the sun in the middle of the black circle. After ten minutes, that black circle disappeared, and the sky was blue again. I wanted to see this phenomena on my computer, and I saw these three spherical objects on move outside the black circle. © Patrice Kaminski