Astrophysicist Kirill Bronnikov: Under certain conditions, ordinary dusty matter can play role in 'wormholes' Bronnikov's group has presented theoretical evidence of traversability of “wormholes’ for light in Friedman’s model of the expanding universe. The main conclusion is the possibility of the existence of ‘wormhole’ in the expanding Universe with the most ordinary dust-like matter, consisting of non-interacting particles, or rather interacting only through a gravitational field.
Calculations show that the size of a wormhole in which the body of a human body can be stretched is comparable to that of a vehicle.