>rsonally, I thin aliens are already here. just not showing themselves for some reason. did you know, during the 1900s when we started making nuclear bombs ufo sightings skyrocketed? maybe they're watching us advance for some reason, or maybe feel threatened.

It was also the beginning of the Cold War.

Did you know that over half of the UFO sightings in the late 1950's through the late1960's were actually sightings of top secret reconnaissance aircraft like the U-2 and the SR-71?

https://www.nytimes.com/1997/08/03/us/cia-admits-government-lied-about-ufo-sightings.html

Rather than acknowledgeing the existence of the top-secret flights or saying nothing about them publicly, the Air Force decided to put out false cover stories, the C.I.A. study says. For instance, unusual observations that were actually spy flights were attributed to atmospheric phenomena like ice crystals and temperature inversions.

''Over half of all U.F.O. reports from the late 1950's through the 1960's were accounted for by manned reconnaissance flights'' over the United States, the C.I.A. study says. ''This led the Air Force to make misleading and deceptive statements to the public in order to allay public fears and to protect an extraordinarily sensitive national security project.''

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They were mostly training flights. You need to become proficient at flying such very high performance aircraft before you are trusted with an operational mission.