The eruption lit up the sky near Yekaterinburg for 11 seconds in what appeared to a major aerial explosion.The strange light was not accompanied by any sound, according to eyewitnesses, although Russian authorities are refusing to comment on the event. One witness told the Siberian Times: ' 'For a few moments night turned into dazzling day, then everything went dark again,' a witness told The Siberian Times - The dark early evening sky turned into a dazzling orange light then pulsating yellow and white as the flash engulfed the entire sky.Bakudaily.Az