Every so often, news comes out that a famous Egyptian monument has a heretofore-unknown passage or two. Last year, it was King Tut's tomb, which Egyptologist Nick Reeves suggested had hidden chambers behind its walls. Today, it's the Great Pyramid, which a research collective believes has secret rooms that no one's ever seen before!

ScanPyramids is an international organization devoted to examining Old Kingdom monuments by utilizing "non-invasive visual techniques," like 3D scanning and reconstruction, as well as  other high-tech tools. They also use muography, which the European Geosciences Union describes as "the large-scale equivalent of using x-rays to generate images." Using muography, what is Scan Pyramids' goal? "To probe the heart of the largest pyramids of Egypt, without drilling the slightest opening" that could harm these ancient treasures.

Khufu, the pharaoh who build the Great Pyramid. Image via captmondo/Staatliches Museum Ägyptischer Kunst München/Wikimedia Commons.

What did SP find in Khufu's pyramid? A recent press release has announced, "We are now able to confirm the existence of a “void” hidden behind the North Face, that could have the form of at least one corridor going inside the Great Pyramid." In addition to the void, there's reportedly a cavity 345 feet up. ScanPyramids plans to conduct further muographic investigations into the pyramid, to be completed by the end of this month. 

Not every Egyptologist is on board with this discovery, however. Dr. Zahi Hawass, former head of Egypt's Supreme Council of Antiquities, didn't support the idea of Nefertiti's tomb being located behind King Tutankhamun's last year, and he unsurprisingly is skeptical of this new discovery. But more testing will surely yield more fascinating finds - or lack thereof - from scientists.

Feature image via Nina Aldin Thune/Wikimedia Commons.