The Egyptian government on July 13 opened the two ancient pyramids in southern Cairo, announcing the discovery of many of the mausoleums with well-preserved mummies.
Data from Muyon County could help scientists find a secret chamber.
Archaeologists have uncovered evidence of an Egyptian pyramid dating to about 3,700 years ago that had never been known in southern Cairo.
By using 3D laser scanning, cosmic rays ... Egyptian experts built the first multi-dimensional image of the structure inside the pyramid.