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Beginnings
The balloon entered U.S. airspace on Jan. 28 north of the Aleutian Islands in Alaska, according to a senior military official. Photos from later sightings appear to show the craft was an enormous white dirigible with an undercarriage described by one U.S. official as the size of three buses. -
Chinese Spy Balloon
The U.S. military shot down an unidentified object flying above Michigan on Sunday, making it the fourth airborne object downed by American forces in just over a week. -
Alaska
The downing follows a shootdown of a cylindrical object by the U.S. military in Canada's Yukon territory on Saturday, and the downing of "a high altitude airborne object" off of the northern coast of Alaska on Friday. -
Canada
The object was shot down approximately 100 miles from the Canada-U.. border in central Yukon, Canadian Defense Minister Anita Anand told reporters during a press briefing on Feb. 11. -
Lake Huron
An F-16 fighter jet used a missile to take out an unidentified object over Michigan's Lake Huron on Saturday. Here, a Belgian F-16 is pictured taking part in a NATO nuclear deterrence exercise in Belgium in October.