Flashbacks to the Big Bang -Gravitational Waves Create ‘Memories’ of the Universe

  While the billion-dollar Laser Interferometer Gravitational-Wave Observatory (LIGO) detector watches 24/7 for gravitational waves to pass through the Earth, new research shows those waves leave behind “memories” –a permanent displacement of spacetime that comes from strong-field, general relativistic effects–that could help detect them even after they’ve passed, creating the potential to tell us about … Continue reading Flashbacks to the Big Bang -Gravitational Waves Create ‘Memories’ of the Universe