A team of scientists examining thermal scans of Egypt's great pyramids noticed "anomalies" regarding a section of blocks.
According to Ahram Online, the scientists scanned the pyramids at sunrise and sunset for their surface temperatures. On the eastern side of King Khufu's Great Pyramid in Giza, they noticed a small section of blocks that were a different temperature than the rest.
Mamdouh Eldamaty, a professor of Egyptology at the University of Cairo and Egypt's minister of antiquities, told Ahram Online researchers' findings are highly intriguing, albeit mysterious. He said there was also "something like a small passage leading up to the pyramid ground, reaching an area with a different temperature" in the area in front of the pyramid's eastern side.
"I don't know yet what could lay behind such blocks or what these anomalies could be, but it will surely lead to major discoveries," Eldamaty said. "I have several hypotheses in mind, though I cannot reveal them before conducting further research and study," he said, adding that Muon detection will soon be used on the Khufu Pyramid in order to determine what these blocks conceal and the nature of the anomalies.
"It could be void spaces, fissures or passages. So far, I do not know."
Collaborating on the research project were researchers from the University of Cairo, the French Heritage Innovation and Preservation (HIP) Institute, the Université Laval in Quebec, and the Nagoya University in Japan.
"It's always interesting to hear new discoveries at Giza, which has a huge significance in the public imagination," Richard Enmarch, senior lecturer in Egyptology at the University of Liverpool, told ABC News. "It's such a huge structure - there is no end to exotic theories behind it."