There have been supposed alien sightings for centuries. These observations of "unidentified flying objects," or UFOs, have periodically surged, such as during the late 1940s and early 1950s as the Cold War began. There have been more sightings since the early 2000s, driven by advances in sensors and cameras that capture images in real time.
Over the last decade, since the work of a shadowy government program called the Advanced Aerospace Threat Identification Program was made public in 2017, there has been growing public pressure on the US government to release its files related to aliens. At the same time, UFOs have been rebranded as Unidentified Aerial Phenomenon, or UAP.
Amid the growing public outcry, the Pentagon and other officials have repeatedly stated that they have found no confirmed evidence of extraterrestrial beings or their technology visiting Earth. But we live in an era of conspiracy theories and an unbounded and increasingly unhinged Internet. No one trusts anyone. So there are plenty of people who believe aliens are real and the government is covering it all up.
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Source: Ars Technica
