Researchers from Cairo University and the Technical University of Munich (TUM), working within the ScanPyramids research project, have uncovered two concealed air-filled anomalies inside the third-largest pyramid at Giza. For years, scientists have suspected there might be an undiscovered entrance along the eastern side of the Menkaure pyramid. New investigations using radar, ultrasound, and electrical resistivity tomography (ERT) now confirm the presence of two hidden voids beneath the eastern facade, offering the first solid evidence supporting that idea.

The eastern face of the more than 60-meter-tall Menkaure pyramid has long puzzled researchers. A section of granite blocks, measuring roughly four meters high and six meters wide, appears unusually smooth and polished. Similar finishes are otherwise only seen at the pyramid's known entrance on the north side.…