Scanning technology has revealed that there are two mysterious chambers in the Great Pyramid of Giza that have previously been undiscovered.

The structure that stands 480 feet tall and built around 4,500 years ago has been part of a study named Operation ScanPyramids made up of a team of highly skilled scientists from different universities using the latest technology to see inside the pyramids of Egypt better than ever before. This technology allowed the team to see insode the pyramids in a non-evasive and non-destructive manner using muon radiography imaging, infrared thermography and 3D imaging.

The project started last October when the team began searching for hidden rooms and chambers inside the Khufu and Khafre pyramids in Giza, and the Bent and Red pyramids in Dashur but it was with the Great Pyramid that the excitement began this month.

“We are now able to confirm the existence of a ‘void’ hidden behind the North Face, that could have the form of at least one corridor going inside the Great Pyramid,” Scan Pyramid said. “The precise shape, size, and exact position of this void is now under further investigation. It should be done with the help of 12 new Muon Emulsion plates that are installed in the descending corridor, and will be collected by the end of October 2016.”

One discovery is an unknown cavity standing around 345 feet from the bottom of the pyramid while the second discovery was described as a ‘void’ that is shaped like a corridor and reaches up inside the pyramid.

Despite the exciting find, the Antiquities Ministry has been employed to oversee the work of the project and have ordered more tests to be carried out to understand more about the function, size and nature of the new rooms with a slight caution about whether they exist. As a result the project could be extended for a further year to allow the researchers to gather more data.