architektura: 2023 Chinese balloon incident

Evidence: 100 • authority: 72

From January 28 to February 4, 2023, a high-altitude balloon originating from China drifted across North American airspace, including Alaska, western Canada, and the contiguous United States. On February 4, the U.S. Air Force shot down the balloon over U.S. territorial waters off the coast of South Carolina near the city of Myrtle Beach. Debris from the wreckage was recovered and sent to the FBI Laboratory in Quantico, Virginia, for analysis. U.S. officials stated that the balloon carried intelligence-gathering equipment but does not appear to have sent information back to China. They believed that while the balloon carried a motor, it could not overcome high altitude winds and the Chinese…

Evidence: 47 • authority: 72

2023 Montana high-altitude object may refer to: 2023 Chinese balloon incident, a high-altitude Chinese balloon that floated over North America from January to February, overflying Montana on February 1, with many ground observations of it from Montanans, later shot down off the East Coast on February 4 2023 Lake Huron high-altitude object, a February 11th radar detection originating in Montana, resulting in a shootdown the following day over Lake Huron

Evidence: 35 • authority: 72

Several high-altitude airspace security events were reported in February 2023, initially over North America, then over Latin America, China, and Eastern Europe.

Evidence: — • authority: 72

The Pentagon UFO videos are selected visual recordings of forward-looking infrared (FLIR) targeting cameras from United States Navy fighter jets based aboard the aircraft carriers USS Nimitz and USS Theodore Roosevelt in 2004, 2014 and 2015, with additional footage taken by other Navy personnel in 2019. The four Infrared videos taken from aircraft's targeting pod have been widely characterized as officially documenting UFOs and received extensive coverage in the media since 2017. The Pentagon later addressed and officially released the first three videos of unidentified aerial phenomena (UAP) in 2020, and confirmed the provenance of the leaked 2019 videos in two statements made in 2021. Foo…

Evidence: — • authority: 72

On 1 May 1960, a United States U-2 spy plane, having taken off from Peshawar in Pakistan, was shot down by the Soviet Air Defence Forces in Sverdlovsk, Russia. It was conducting photographic aerial reconnaissance inside Soviet territory while being flown by American Central Intelligence Agency pilot Francis Gary Powers, as it was hit by a surface-to-air missile. Powers parachuted to the ground and was captured. Initially, American authorities claimed the incident involved the loss of a civilian weather research aircraft operated by NASA, but were forced to admit the mission's true purpose a few days later after the Soviet government produced the captured pilot and parts of the U-2's surveil…

Evidence: — • authority: 72

The relationship between the People's Republic of China (PRC) and the United States (US) has been complex and at times tense since the establishment of the PRC on 1 October 1949 and the subsequent retreat of the government of the Republic of China to Taiwan. After the normalization of relations in the 1970s, the US–China relationship has been marked by persistent disputes including China's economic policies, the political status of Taiwan and territorial disputes in the South China Sea. Despite these tensions, the two nations have significant economic ties and are deeply interconnected, while also engaging in strategic competition on the global stage. As of 2025, the US and China are the wo…

Evidence: — • authority: 72

On February 10, 2023, the United States Air Force shot down a high-altitude object that had entered U.S. airspace over Alaska a day before. The object was shot down onto the Beaufort Sea. The Department of Defense said it was the size of a small car and flying northeast at approximately 40,000 feet (12,000 m), posing a risk to civilian flight. On February 16, 2023, U.S. President Joe Biden stated that the downed object was probably a civilian-owned balloon and "most likely tied to private companies, recreation or research institutions". An attempt was made to recover the debris, which landed in the sea. However, on February 18, 2023, it was reported that the search had been abandoned.

Evidence: — • authority: 72

Fu-Go (ふ号[兵器], fugō [heiki]; lit. "Code 'Fu' [Weapon]") was an incendiary balloon weapon (風船爆弾, fūsen bakudan; lit. "balloon bomb") deployed by Japan against the United States during World War II. It consisted of a hydrogen-filled paper balloon 33 feet (10 m) in diameter, with a payload of four 11-pound (5.0 kg) incendiary devices and one 33-pound (15 kg) high-explosive anti-personnel bomb. The uncontrolled balloons were carried over the Pacific Ocean from Japan to North America by fast, high-altitude air currents, today known as the jet stream, and used a sophisticated sandbag ballast system to maintain their altitude. The bombs were intended to ignite large-scale forest fires and spread p…

Evidence: — • authority: 80

Head Office Building - January 1963-January 1965 - South western corner - 28 February 1964

Evidence: — • authority: 92

Overview of the Alaskan Layered Pollution and Chemical Analysis (ALPACA) Field Experiment.. The Alaskan Layered Pollution And Chemical Analysis (ALPACA) field experiment was a collaborative study designed to improve understanding of pollution sources and chemical processes during winter (cold climate and low-photochemical activity), to investigate indoor pollution, and to study dispersion of pollution as affected by frequent temperature inversions. A number of the research goals were motivated by questions raised by residents of Fairbanks, Alaska, where the study was held. This paper describes the measurement strategies and the conditions encountered during the January and February 2022 fie…