Amateurs sometimes attach cameras to similar balloons in order to snap impressive vistas. Such balloons monitor weather and also offer researchers an affordable way to carry instruments into the upper atmosphere, often with GPS trackers so the scientists can retrieve them when they land. The attached instruments drift safely back down on parachutes.
These latex balloons, filled with either hydrogen or helium, do not remain airborne for long they burst as a result of changes in pressure as they ascend. For instance, nearly 100 National Weather Service (NWS) sites release balloons twice a day to measure things like temperature and humidity. Just how many balloons are usually floating over the U.S., and who is keeping track of them?Īt any given time, there could be hundreds or thousands of floating objects overhead-but the vast majority are innocuous. Here is everything we know-and don’t know-about all the balloon brouhaha. Much remains unknown about the three most recent objects, including where they came from, if they carried surveillance equipment and whether they were even balloons or some other airborne craft. shot down three more airborne objects: one off the coast of Alaska on Friday, one over Canada on Saturday, and one over Lake Huron in Michigan on Sunday. With attention heightened, over the past few days the U.S. has sent surveillance balloons over their country, but U.S. Chinese officials also claimed that the U.S. has since recovered sensors and other electronic equipment from the wreckage, which indicate that it was likely used for eavesdropping on electronic signals. China has claimed that the balloon shot down last week was merely a weather-monitoring station blown off course. airspace since 2018-and had evaded early detection at the time. As Americans turned their eyes to the sky, it became apparent that the object was not alone: news soon broke that another Chinese spy balloon was floating over Latin America, and that several such balloons had encroached on U.S. shot down a massive Chinese surveillance balloon over the Atlantic Ocean just off South Carolina, after it spent days traveling across the country.
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