Scientists discover hidden corridor in Pyramid of Giza through cosmic-ray muon radiographyA hidden corridor inside the Great Pyramid of Giza has been detected for the first time.abc.net.au/news/scientists-uncover-hidden-corridor-in-great-pyramid-of-giza/102047768A nine-metre long hidden corridor has been discovered close to the main entrance of the 4,500-year-old Great Pyramid of Giza, which Egyptian antiquities officials believe could lead to further findings.
Scientists detected the corridor through cosmic-ray muon radiography, before retrieving images of it by feeding a 6mm-thick endoscope from Japan through a tiny joint in the pyramid's stones. The pyramid was constructed as a monumental tomb around 2560 BC during the reign of the Pharaoh Khufu, or Cheops.Built to a height of 146 metres, it now stands at 139 metres and was the tallest structure made by humans until the Eiffel Tower in Paris in 1889.
The stone looks as good as the day it was cut. Chance that the pyramid is much older.
What! No cobwebs?