https://briankoberlein.com/2015/04/03/green-goblins/ Brian Koberlein Fri, 22 Feb 2019 18:22:15 +0000 hourly 1 https://wordpress.org/?v=5.1 https://briankoberlein.com/2015/04/03/green-goblins/#comment-2174 Sat, 04 Apr 2015 01:11:20 +0000 https://briankoberlein.com/?p=4662#comment-2174 Two closely orbiting supermassive black holes should produce tangible gravitational waves.

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