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By Samuel A. López | USA Herald

What if the most shocking revelation in the coming UFO disclosure isn't about little green men from a distant galaxy — but about a civilization that lived and died right here on Earth, millions of years before humanity ever drew its first breath?

That's the jaw-dropping question Harvard astrophysicist Professor Avi Loeb has now put on the table, and I'm telling you — once you go down this rabbit hole, you don't come back the same.

The Man Who Refuses to Look Away

Avi Loeb isn't your average armchair theorist. He's the former chair of Harvard's Department of Astronomy, the founder of the Galileo Project, and arguably the most credentialed scientist on the planet willing to say out loud what others whisper behind closed doors: we may not be alone, and we may never have been.

In his latest Medium post, Loeb raises a series of questions that are as scientifically grounded as they are mind-bending. And given the Trump administration's directive to begin declassifying and releasing UFO/UAP files to the public — files that will reportedly appear on the newly launched aliens.gov — Loeb's timing couldn't be more electric.

A Civilization That May Have Predated Us — On Our Own Planet

Here's where things get wild, so stay with me.

Loeb points out that Earth is approximately 4.54 billion years old. Life itself began roughly 4.2 billion years ago with what scientists call LUCA — the Last Universal Common Ancestor. Now, modern Homo sapiens have only been around for about 300,000 years, and we launched our first satellite — Sputnik — in 1957. That means it took us roughly 300,000 years to reach orbital spaceflight capability.

So here's the thought experiment Loeb lays out: What if intelligent life emerged on Earth 272 million years ago — when our planet was about 94% of its current age? A civilization that had a 20-million-year head start on technological development could have been launching satellites long before the first dinosaur ever walked the Earth.

And then — roughly 252 million years ago — something catastrophic happened.

The Permian Extinction. The "Great Dying." The single most devastating extinction event in Earth's known history, wiping out 96% of all marine species in what scientists have long attributed to volcanic greenhouse gas emissions and runaway global warming.

But Loeb asks the question that no one in mainstream science wants to touch: What if it wasn't volcanic? What if it was technological?

What if a pre-human civilization — advanced, space-capable, and careless with its atmosphere, much like we are today — triggered its own extinction through industrial-scale climate destruction?