Kerr presented his solution at the first Texas Symposium on Relativistic Astrophysics, only to be completely (and somewhat rudely) ignored by the assembled astrophysicists, who were busily arguing about quasars. To be fair, at the time Kerr found his solution he didn’t appreciate that it represented a black hole, although he knew it was a spinning solution to Einstein’s equation. Later on, astrophysicists would come to understand that quasars are powered by spinning black holes, described by Kerr’s spacetime.
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