Astronomy, Earth, Moon, Mars & Beyond and Mysteries

120,000-year-old discovery made in cave hidden under historic Welsh castle may rewrite history as we know it


At Pembroke Castle in Wales, archaeologists have uncovered something extraordinary: a cave system containing evidence of life stretching back around 120,000 years, including the remains of a hippopotamus, Ice Age animals, and possible early human activity. The site, known as Wogan Cavern, is now being described as one of the most significant prehistoric discoveries in Britain.
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Researchers believe they finally figured out how the Great Pyramids were built - and no, it's not aliens


For decades, the construction of the Great Pyramid of Giza has sparked one of history’s biggest mysteries and plenty of wild theories. From secret lost civilizations to alien intervention, many people have struggled to believe that ancient humans alone could build something so massive and precise.

But new research suggests a far more grounded and equally fascinating answer.

The breakthrough theory

A recent study using advanced 3D modeling suggests the pyramid wasn’t built with massive external ramps, as previously believed. Instead, researchers, including computer scientist Vicente Luis Rosell Roig, think the ancient Egyptians used a hidden internal ramp system built directly into the structure.

This “integrated edge ramp” would have spiraled upward inside the pyramid as it was being constructed. Workers could move massive stone blocks along this internal path, leaving gaps in the outer layers that were later filled in, effectively erasing evidence of the ramp once construction was complete.

The theory helps explain several long-standing mysteries:

  • How over 2.3 million stone blocks were moved and placed
  • How construction stayed so precise without modern tools
  • How the pyramid could have been completed in roughly 20–30 years
Even more impressive, simulations suggest workers could place a block every few minutes, making the timeline far more realistic than previously thought.

So ... Why Did People Think Aliens Built Them?

The alien theory didn’t come out of nowhere. The pyramids are astonishing feats of engineering:

  • Perfectly aligned with cardinal directions
  • Built with massive stones weighing up to tens of tons
  • Constructed over 4,500 years ago without modern machinery
Because of this, some people assumed ancient civilizations lacked the technology or knowledge to build them. But in reality, ongoing research continues to show that ancient Egyptians were incredibly advanced engineers, capable of complex planning, mathematics, and large-scale labor organization.
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Simone411 said:
Researchers believe they finally figured out how the Great Pyramids were built - and no, it's not aliens

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The pyramid article brings up why folks think the Von Danikken theory about ancient aliens has merit.
The alien theory didn’t come out of nowhere. The pyramids are astonishing feats of engineering:

  • Perfectly aligned with cardinal directions
  • Built with massive stones weighing up to tens of tons
  • Constructed over 4,500 years ago without modern machinery
Because of this, some people assumed ancient civilizations lacked the technology or knowledge to build them.
Click to expand...
The ancient alien thing is driven by modern western culture bias. Essentially what von Danikken was saying is Western European culture is the apex of civilisation and the ancient peoples were too primitive, too unsophisticated to have built these structures. Therefore, because the intellectually superior Western Europeans weren’t there to help them, they had to have help from someone else like advanced extraterrestrial aliens.
And he then reinforces his conclusion by misinterpreting ancient art and writings to promote his racist theories.
 
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Ancient Egypt secrets emerge from breakthrough Giza discovery


This is a slideshow.

Egyptian officials declared a significant archaeological breakthrough in 2023 with the discovery of a previously unknown corridor within the Great Pyramid of Giza, one of the seven wonders of the ancient world. This marks the first such find in a millennium, potentially paving the way for further revelations about this ancient structure.
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Slide show 3:

At the north entrance of the pyramid

At a press conference in front of the Pyramid of Giza in early March of 2023, Egypt's Minister of Tourism and Antiquities, Ahmed Issa, said that the tunnel was discovered on the north side of the pyramid.
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Slideshow 4

What does the tunnel look like

Egypt's Ministry of Tourism and Antiquities said in the statement that the mysterious tunnel was nine meters long or 30 feet long and more than two meters or six feet wide.
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Slideshow 5

Groundbreaking technology

Thanks to an endoscopic camera with a diameter of 5 mm, which penetrated between the stones without causing any damage, scientists were able to take pictures. These show a stone cavity with a gabled roof.
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Slideshow 6

An international scientific mission

This secret room was discovered as part of an international research project called ScanPyramids. Since 2015, German, French, Japanese and Canadian universities have been collaborating with Egyptian archaeologists to study the pyramids and learn more about the construction methods used to build the pyramids more than 4,500 years ago.
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Alarming discovery in the Grand Canyon challenges a century of silence


In April 1909, the Arizona Gazette published a story that would echo for more than a century. It described an explorer named G.E. Kincaid who claimed to have discovered a vast, man-made cavern deep in the Grand Canyon, filled with carved chambers, copper tools, hieroglyphic tablets and mummified remains. The article named a Smithsonian-backed expedition and suggested links to ancient civilizations from the “Orient,” language that reflected the reporting style of its time.

The claims were dramatic. According to the original newspaper account, the cave sat nearly 1,500 feet down a sheer canyon wall. Inside were carved passageways, cross-halls, and a central idol described as resembling Buddha. The report detailed granaries, copper weapons, and shelves holding mummies wrapped in bark fabric. It even cited a Smithsonian figure, “Professor S.A. Jordan,” as overseeing further excavations.

Yet within days, another Arizona paper, the Coconino Sun, cast doubt on the entire narrative, calling it “a splendid piece of imagination” and suggesting it resembled the tall tales of Joe Mulhattan, known at the time as “the great liar.” Modern researchers have described the episode as a classic early 20th-century newspaper hoax, noting that no evidence of the cave or its artifacts has ever surfaced in museum records or verified archives.

The Canyon's Documented Past

Long before rumors of hidden chambers, the Grand Canyon had a well-documented human history. Archaeologists have uncovered evidence of human habitation dating back nearly 12,000 years. Large stone spear points and split-twig figurines found in canyon caves point to Ice Age communities that hunted mammoths and other megafauna. Later, Ancestral Pueblo people, followed by Paiute, Navajo, Zuni and Hopi tribes, lived in and around the canyon.

The Havasupai people trace their presence in the canyon back more than 800 years. Tribal history holds that they have lived within its walls and side canyons for generations. In the 20th century, much of their ancestral land was incorporated into public lands when the Grand Canyon became first a forest reserve and then a national park. After decades of advocacy, Congress restored a significant portion of that land to the Havasupai in 1975.

The canyon’s physical history is equally layered. Scientists estimate it formed five to six million years ago as the Colorado River carved through rock layers that reveal nearly two billion years of Earth’s crust. These exposed strata have made the canyon a living textbook for geologists. The National Park Service emphasizes that its archaeological and geological record already provides a deep and continuous story of human and natural history, one grounded in excavations, peer review and documented collections.
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