#wormhole

#wormhole

If a collision of two black holes was powerful enough to create a tunnel between universes, the gravitational signal could pass down the wormhole's throat into our cosmos. Since the wormhole would only be open for a very short time, this would explain why GW190521 seems to cut off abruptly. Although their modelling suggests this scenario isn't very likely, Dr Lai says evidence cannot rule out that the signal travelled to Earth from another universe.