Uploaded January 2026 | Updated September 2026, 2 weeks ago

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Are we truly alone in the vastness of the cosmos, or has Earth already played host to visitors from the stars? In this documentary, we bridge the gap between sensational UFO sightings and the cold, hard realities of theoretical physics.

Welcome to Progress - the home of engineering marvels, space exploration and history's greatest inventions. From rockets that took us to the stars to the world's most advanced military vessels, we'll be bringing you world-class documentaries every week.

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