Speculative wormhole echoes could revolutionize astrophysics
(PHYSorg.com Space & Earth)

The scientific collaborations LIGO and Virgo have detected gravitational waves from the fusion of two black holes, inaugurating a new era in the study of the cosmos. But what if those ripples of space-time were not produced by black holes, but by other exotic objects? A team of European physicists suggest an alternative-wormholes that can be traversed to appear in another universe.