With how old the ancient pyramids in Egypt actually are, you'd think experts would know all there is know.
Of course, conspiracy theorists have long thrived in this space, though very few have been credible.
I mean, tales about aliens and unknown civilisations continue to swirl around to this very day.
There is some more credible work going on inside the pyramids, with experts still making new discoveries to this day.
Last year, a team of scientists discovered a mysterious passageway inside the Pyramid of Khufu, which is the largest of the pyramids in Giza.
While not a lot is known about the mysterious passageway, its discovery could provide more interesting findings in the future.
The latest discovery was made by a research team from a project called Scan Pyramid, with the name implying itself what they look into.
Since 2015, the group has been using modern technology to see what the inside of the pyramid looks like from the outside, with scanners and infrared thermography among other tools.
Apparently, the ceiling of the tunnel shows it was built to relieve the weight of the pyramid, according to Mostafa Waziri, the head of the Egyptian Supreme Council of Antiquities.
“But a big question mark hangs over whether this corridor was created to relieve the weight on the [main] entrance or lighten the load on a space yet to be discovered,” he said.
"Scanning work will continue to uncover more secrets.”
The findings discovered by the team will hopefully be built upon in the coming years.
So, while you'd think we would know everything about the famous Egyptian pyramids, that is far from the case.
The Pyramid of Khufu was built some 4,500 years ago during the time of Pharoah Khufu, and continues to see many tourists visit it every single year.
After Covid-19 and political unrest have taken their toll on the tourist industry in the African country, the Egyptian government will be hoping such breakthrough scientific discoveries will increase interest in the fascinating history that comes with the country.
In other pyramid news, scientists using a radar in China managed to detect strange 'bubbles' over the iconic Egyptian landmark.
These bubbles live in the higher atmosphere, and are made up of hot pockets of gas which form at low latitudes.
