A team of scientists has discovered a mysterious “big void” inside the Great Pyramid of Giza, the largest pyramid in the Giza complex. The void was discovered using a novel scanning technology called cosmic-ray muon radiography, and while the scanning team is suggesting this could be an undiscovered inner structure, some Egyptologists are not convinced.
The scanning project, called ScanPyramids, was launched in late 2015 and set out to scan four specific Egyptian pyramids using a variety of new and innovative scanning technologies. In the case of the Great Pyramid, the team deployed a scanning technique that detects the path of muon particles, an elementary particle that is created when cosmic rays collide with atoms in the Earth’s upper atmosphere.
The team developed three separate muon-detection techniques and investigated the path of these particles through the Great Pyramid. The path of muons is straight unless they hit a dense or solid object, and then they can be slightly deflected. By measuring these particle tracks scientists can identify whether they are moving through solid rock or if there are empty spaces.
Writing in the journal Nature, the scientists recently revealed the discovery of a large void above the Grand Gallery in the Great Pyramid. The discovery was confirmed using all three muon detection processes and it is suspected to be about 30 meters (100 ft) long.