More than a year ago, advanced imaging identified a sizable gap within the Great Pyramid in Egypt. The latest measurements of the “Big Void” within the Wonder of the Ancient World indicates it is a “huge void” that has yet to be explored or fully understood.

The latest theory, proposed by an Italian mathematician and archaeoastronomer, indicates that there is a symbolic iron throne made from precious meteorite material that would accompany the pharaoh Cheops on his trip to an afterlife in the sky.

Giulio Magli, of the Politecnico di Milano, said there is no structural need for the void, which sits over the pyramid’s Great Gallery. It does not relieve weight, since the top of the Gallery was already constructed with corbelled arches.

Instead, the Pyramid Texts indicates there could be symbolic reasons for the heretofore unknown void, said Magli. The Texts said the pharaoh would pass the “gates of the sky” and sit on his “throne of iron” before ascending into his afterlife in the sky.

The four narrow shafts – much too small for humans to crawl through – may be the key to the symbolic effect, he adds. Two of the four shafts open to the outside surface of the pyramid; the other two lead to small doors. The southern door has been explored, without significant discovery – but the northern door opposite remains sealed.

Maglo contends the “gates of the sky” alluded to in the legend indicate the doors – and the still-sealed door could lead to the void, and an iron throne.

The Italian scientist further hypothesizes that the throne would look something like the throne of Cheops’ mother, Queen Hetepheres. That throne was a cedar chair coated with sheets of gold and glazed pottery. But Cheops’ throne would instead have iron covering – and that source would have to be from meteorites, since this was centuries before the Iron Age technologies to smelt their own iron. (The famed Tutankhamun dagger found on the mummified king’s right thigh was from meteorite sources, as well).

The Scan Pyramids Project began releasing some of its new discoveries in late 2016.Thermography, 3-D simulation and muography were combined to triangulate the dimensions of the gap within the Cheops Pyramid.

The team first announced thermal anomalies on the surface of the pyramid in November 2015. The purported gaps in the structure could hold secret chambers, they quickly surmised.

Use of three different angles of muography, measurement of cosmic particles, has indicated the gap “conclusively” exists at a height of about 105 meters – and is about 6 meters deep from the surface, according to one of the group’s 2016 reports.