In the past week, San Francisco and Brooklyn were both treated to the sight of mysterious illuminated objects floating in the sky.

And, of course, rather than of alien origin, the lights seem to have come from something commonly mistaken for UFOs: Chinese lanterns.

On Dec. 3, in the Prospect Heights neighborhood of Brooklyn, an amateur video captured a slow-moving parade of lights overhead. The trio of lights appeared to move in a coordinated fashion, slowing down and then moving again in roughly the same direction and at the same speed.