Now i would believe that, but have being witness to something i couldn't explain, the light moved across the sky rather fast and was a constant white light, didn't flicker, flash or change colours, just came from the horizon and move across the sky, no noise and then vanish over the horizon.
It was too big for a satelite, no flaming trail for a meteor, no flashing lights to indicate a plane or helecopter, no noise.
So using Occam's Razor how could i still choose a simple answer for something like that?