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  1. Apr 28, 2020 · The Pentagon said it wanted to "clear up any misconceptions by the public on whether or not the footage that has been circulating was real". The videos had already been leaked in 2007 and 2017.

  2. However, the UFO sightings kept piling up. One of the most significant was the 2004 Nimitz encounter, when a 40-feet long oblong-shaped tic tac craft confronted fighter pilot US navy commander David Fravor. The craft moved in ways that Fravor described as "out of this world". By 2007, the US had started to take the threat seriously.

  3. Sep 11, 2014 · NASA Research Gives Guideline for Future Alien Life Search. William Steigerwald. Sep 11, 2014. Article. Astronomers searching the atmospheres of alien worlds for gases that might be produced by life can’t rely on the detection of just one type, such as oxygen, ozone, or methane, because in some cases these gases can be produced non ...

  4. Jan 6, 2024 · The search for aliens continues as scientists discover new planets, but the Zoo Hypothesis suggests that advanced extraterrestrial life may already be aware of Earth and intentionally concealing ...

  5. Nov 2, 2022 · The missing plan for alien first contact. 1 November 2022. By Tamlin Magee, Features correspondent. Mark Garlick/Science Photo Library/Getty Images. An artist's depiction of alien plants on an ...

  6. Jan 6, 2016 · Alien life, if it exists, could be as simple as bacteria or more complex than humans—and there are optimal strategies for searching for both. Alien life, if it exists, could be as simple as ...

  7. Aug 9, 2023 · Following Grusch’s testimony, astrophysicist Adam Frank wrote about the history of similar claims. For example, in the 1950s a retired Air Force captain wrote a book in which he claimed there was a government report outlining evidence of alien UFOs. The book didn’t provide evidence, and the captain himself later became a UFO skeptic, Frank ...