A whistleblower alleged the existence of 'Immaculate Constellation,' a secret program serving as a repository for high-quality UAP imagery from military sensors.
Former intelligence official David Grusch testified under oath to Congress that the US government possesses non-human craft and biologics in a secret retrieval program.
Pentagon intelligence officer Lue Elizondo resigned as AATIP director and became the leading public advocate for UAP disclosure.
Navy pilots from the USS Nimitz encountered and filmed a 'Tic Tac'-shaped object displaying physics-defying capabilities, confirmed by Pentagon-released video.
A Mexican Air Force surveillance plane recorded 11 objects on FLIR and radar that were invisible to the naked eye - and Defense Minister Gen. Vega García released the footage on Mexican TV in May 2004, the first state-sanctioned military UAP video release in the Americas.
Bob Lazar claimed to have reverse-engineered alien propulsion at 'S-4' near Area 51, describing Element 115 fuel years before its synthesis.