If today's scientists had to make a guess about it, what's our best guess on what a wormhole would look like?

Albert Einstein theorized it first in 1905 in his book special relativity. it would look like a spiraling tunnel in space, so they say. wormhole is a short cut in the universe. it would be like a rip in space. i wouldn't know the exact color but i would guess it would be blue, yellow or white because of the cosmic elements creating it.Wormholes connect two otherwise unrelated regions to form what is called a multiply connected space.The relativistic description of black holes requires wormholes at their centers. These wormholes, called Einstein-Rosen bridges after Einstein and his collaborator Nathan Rosen, seem to connect the center of a black hole with a mirror universe on the "other side" of spacetime. At first, the bridge was considered a mathematical oddity, but nothing more. It was essential for the internal consistency of the Schwarzschild solution to Einstein's equations, which was the first relativistic solution involving black holes. However, the wormhole could not be traversed because the center of a black hole is a singularity, a point of infinite spacetime curvature, where the gravity would also be infinite and all matter would be crushed to its most fundamental constituents. Additionally, travel through the wormhole would require motion faster than the speed of light, a physical impossibility. For these reasons, Einstein-Rosen bridges were quickly forgotten despite other later solutions that included them. They were assumed to be mathematical oddities that had no bearing on physical reality.