Simulations show that a signal could pass through a certain type of wormhole Rost9/Shutterstock
It may be possible to travel through a wormhole and send a signal back. Models of hypothetical wormholes – bridges that create a shortcut between two distant locations in space-time – have shown that they are extremely fragile and liable to implode if anything falls in, but a pulse of light may be able to outrace that collapse.
Ben Kain at the College of the Holy Cross in Massachusetts and two of his students simulated a traversable wormhole to …
