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# Can the Universe Remember? Exploring Gravitational Memory
- URL: https://www.cascadepbs.org/show/pbs-space-time/episode/can-the-universe-remember-exploring-gravitational-memory-dsugjo/
- Published: 2024-12-02T20:30:54.000Z
- Updated: 2025-08-21T13:47:13.000Z
- Description: Gravitational tsunamis exist and we’re on the verge of being able to detect them.
- Author: Cascade PBS Staff
- Tags: PBS Space Time, Season 10, Episode 26, #ZZZ_Episode_cb62393d-6388-4143-b877-186c62998d7f, #episode, #ZZZ_Show_ae70f836-13b6-4c9d-b61f-99f7b8bc29eb, #v1.16

There are cosmic events so powerful that they leave permanent marks on the fabric of the universe itself - a permanent mark etched in the fabric of the universe. They’re akin to gravitational tsunamis, and we’re on the verge of being able to detect them.