Researchers think a mysterious signal, dubbed GW190521, could have arrived from a parallel universe after passing through a ...

And so, one team of scientists are now running with the theory that it could be a sign of a wormhole linking our universe with a parallel one. Led by Dr Qi Lai of the University of Chinese Academy of ...

The violent collision and merger of two black holes emits gravitational waves - ripples in spacetime - that can cause the ...