Dr. Brian Cox is a science presenter for the BBC in Britain and one of the most in-demand science communicators in the world. Today, he sat down with me to talk about a wide range of topics, from extraterrestrial life, to how he got interested in science growing up, to the absurd scale of the universe and our small but very important place in it. 

He also talks about his upcoming 50-city tour this summer in North American, Ireland, and the UK called Horizons: A 21st Century Space Odyssey, where they employ groundbreaking visual effects to tell the story of the history of the universe and life on Earth. You can check dates and buy tickets at http://www.briancoxlive.co.uk

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