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Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Thursday, 29-Jun-2023 10:25:16 UTC Stephen Sekula Scientists report deep cosmic hum permeating the universe, suspect movement of supermassive black holes the cause (The Globe and Mail (Ontario Edition)), Jun 29, 2023 https:// globe2go.pressreader.com/artic le/281500755691320