With the recent shootdowns of "high-altitude objects," there's heightened awareness about what's flying in U.S. airspace, especially weather balloons. As it turns out, the skies are crowded. PHOTO: An ...

Add Yahoo as a preferred source to see more of our stories on Google. The scale of China’s balloon surveillance could be more extensive than a handful of flights over the U.S., as intelligence ...

(NewsNation) — A Chinese balloon captured national attention as it flew over the U.S. before being shot down over the Atlantic ocean. But how many surveillance balloons are out there? U.S. officials ...