Blimp Vs Pyramid

"Robotic Blimp Could Explore Hidden Chambers of Great Pyramid of Giza":

French research institutes Inria and CNRS are working with ScanPyramids to develop an exploration robot that can squeeze through a tiny hole while still maximizing the amount of exploration that it can do once it’s through. The concept that they’ve come up with is a robotic blimp that can be stuffed through a 3.5-centimeter hole, unfold and inflate itself, and then explore large areas before deflating and escaping again.