Dr Lewis Dartnell is an author, presenter and Professor of Astrobiology at the University of Westminster. He is best known to the public as a popular science writer, especially for The Knowledge: How to Build our World From Scratch. More recently, he is the author of the Sunday Times bestseller Origins - on how geology has impacted human history and evolution.
We talked about the Origin and Evolution of Man, the effect of tectonic plates on the development of civilisation, the potential for multi-cellular life in our solar system, the potential for discovery of microbial life on Mars, as well as Prof Dartnell's take on Oumuamua and many other things as well. Lewis has appeared on BBC's Horizon, Wonders of the Universe, Stargazing Live and The Sky at Night.