ALAN LIGHTMAN, PhD physicist, is the author of seven novels, including the international best seller
Einstein's Dreams and
The Diagnosis, a finalist for the National Book Award. He has taught at Harvard and at MIT, and is the host of the public television series
Searching: Our Quest for Meaning in the Age of Science. He is a professor of the practice of the humanities at MIT.
MARTIN REES is the UK's Astronomer Royal. He is based at Cambridge University where he is a Fellow (and Former Master) of Trinity College. He is a member of the House of Lords, a former President of the Royal Society, and co-founder of the Centre for the Study of Existential Risks at Cambridge University (CSER). His research interests include space exploration, black holes, galaxy formation, the multiverse and prospects for extraterrestrial life. He has written ten books, most recently
On the Future: Prospects for Humanity.