Reuters reports — a breathtaking revelation, especially given the fact that we’ve been scanning the 4,500-year-old structure with infrared rays since 2015. new article published in the journal Nature this week, the discovery made by the international research project Scan Pyramids could shed light on how the 479-foot-tall pyramid was constructed, and why the corridor is flanked by a massive limestone structure. The news comes after a giant void almost 100 feet in length was discovered by Scan Pyramids researchers back in 2017, the largest to have been discovered in the ancient structure in over a century