Researchers probing the wonder of the ancient world have revealed two undiscovered spaces remain inside it.
The team monitored how many muons – particles that rain down from the edge of space – would pass through the structure.
What their findings revealed was one gap on the Pyramid”s northeastern edge, 105m above the ground, and another on its north face.
“The precise shape, size, and exact position of this void is now under further investigation.”
Muons pass through empty spaces but can be absorbed or deflected by any harder surfaces they encounter.
Using metallic plates sensitive to the cosmic particles, researchers can measure how many of them pass through structures.
In this way they try to map the shape of the spaces contained within a structure, like pyramid.