Military officials are investigating a "large balloon and payload" discovered by fishermen off the coast of Alaska last week, the Department of Defense confirmed on Friday. "A U.S. commercial ...

A Chinese spy balloon that passed over the United States last year was packed with American technology that could have ...

Each balloon would be directed to a layer where ... if only for maintenance and further development. As it turned out, large, fragile floating structures that are constantly subjected to the ...

Now for this to happen, the balloons would have to come back down in fairly large chunks. These chunks would then have to either block the animal's airways and choke them, or become lodged in ...