In the paper, published on 21 December in Physical Review D, co-authored by physicists from the University of Chicago in the United States and the Max Planck Institute for Gravitational Physics in Germany, lay out how LIGO (Laser Interferometer Gravitational-Wave Observatory) gravitational waves could be scrambled to offer the information scientists have been seeking.

The study, “Gravitational wave lensing beyond general relativity: Birefringence, echoes, and shadows,” claims that this would depend on finding “ripples” through space and time heading towards Earth after having been “bent” by travelling through supermassive black holes or large galaxies.



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