An inexplicable white-and-blue flash was spotted lighting up the sky over the southern Russian city of Stavropol. A dashcam video has since triggered a heated debate over the origins of the mysterious sight.
Stavropol’s horizon offered a jaw-dropping view to those who weren’t asleep at around 00:39 local time (21.39 GMT on Monday). The soundless flash of light scared several people, as it made some streetlights in the city go out, while being accompanied by the flickering of lights inside apartments and houses. . . .