The best way to explore a pyramid

How do you explore mysterious voids inside the Great Pyramid ? With a tiny inflatable blimp. Obviously.

"Once inside, the blimp is inflated with helium and unfolds to a diameter of 80 cm. It then undocks and floats off with a 50-gram payload of motors and sensors, including lights, cameras, and assistive navigation systems. Once its mission is finished, the blimp returns to its dock, deflates and refolds, and comes right back out the same hole."
https://spectrum.ieee.org/automaton/robotics/drones/robotic-blimp-could-explore-hidden-chambers-of-great-pyramid