Since the Pentagon declassified several videos of, what they call, "Unidentified Aerial Phenomenon", the media has approached the alien question before but this appears to be the first proper investigative report on whether or not UFOs/UAPs could be extra-terrestrial (alien) by a mainstream news outlet.
NBC News: We Might Not Be Alone In The Universe | The Overview
Gadi Schwartz on one of the biggest existential questions of the time: other intelligent life.
UFO/UAP News
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UFO/UAP News: 60 Minutes Interviews The Navy Pilots Of The Declassified UFO/UAP Videos
UFO Facts: Pentagon Calls UFOs "UAPs" (Unidentified Aerial Phenomenon) And Have Just Confirmed A Green Triangular UAP & A Spherical UAP That Was Leaked By A Navy Pilot
Unconfirmed UFOs/UAPs In The News: CBS News Obtained Footage Of Mysterious Glowing Orbs Floating Over New York City
Unconfirmed UFOs/UAPs In The News: Blue UFO seen in Hawaii
Unconfirmed UFOs/UAPs In The News: Chilean Navy Releases Video Of Mysterious Flying Object - Fox News
UFO/UAP Eye Witnesses In The News: Westall’s 50-Year-Old UFO Sighting Emerges Again | 7NEWS