There is a new theory that lingers in the minds of experts. They believe that when wormholes cannon into each other, they could create ripples that bounce off them. Tunnels in space-time would form. The so-called gravitational echoes would be measured by future instruments, providing evidence that these theoretical tunnels do exist.
The LIGO ( Laser Interferometer Gravitational-Wave Observatory has detected gravitational waves or space-time ripples, coming from merging black holes. The detection proves that blackholes exist, but their existence does not agree with the laws of quantum mechanics. The only thing that can resolves problems like this is to establish that the blackholes are wormholes that collided.
Blackholes are known to be gateways to oblivion. When something enters it, it is gone, never to be seen again. Movies give life to wormholes. It is still more fiction than fact, but recently, physicists thought of traversable wormholes. Experts say that the possibility of other objects can be as compact and as massive as blackholes, should be thought of seriously.