Why do orbs seem to follow contrails?
“Orbs” are things in the sky that appear round from a great distance, or in a photo or video (often they are individual bokeh highlights). They are things like plastic bags, balloons, planes, birds, clouds, or even specks of dust in a bright light. They don’t actually follow contrails, it’s just that you were looking at the contrail, and you saw orbs. They are everywhere in the sky if you look long enough.