Sagan's hour-long keynote tribute lecture at the Worlds of Philip Morrison Symposium (Day 2), surveying the Copernican perspective and Morrison's contributions to physics and SETI.
Good morning. Unfortunately I'm not Vicky Weiskopf. Vicky was unable to come. He's recovering from a medical problem. Let me assure you he's fine. I've talked to him this morning. He's getting better
Search every word, jump to any moment, and follow along with the video.