I just encountered this BBC article that includes an image to educate reader about different types of aircraft and the altitudes that they usually fly at.
I think that they very accidentally omitted a small detail about weather balloons that could be a bit important for a reader trying to build their own educated opinion, so I’ve added it (Source).
It doesn’t exactly come from the blue sky that the BBC tends to float such groundless suggestions which later turn out to be nothing but hot air. They take stories that are already on everyone’s radar, blow them out of proportion, and then cause a huge bloat of headlines until the whole thing just drifts by. British media should frankly suspend pumping up their articles with such overblown graphics when the obvious explanation is just flying over their heads