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Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Friday, 10-Nov-2017 03:01:17 UTC Stephen Sekula From Twitter https://twitter.com/: Born #OTD 1934, astronomer Carl Sagan was one of the foremost science communicators of the 20th century http://physicstoday.scitation.org/action/cookieAbsent #histSTM https://twitter.com/PhysicsToday/status/928626991477215234/photo/1 https://chirp.cooleysekula.net/attachment/42498