This book is based on an in-depth conversation between Howard Burton and Scott Tremaine, Professor Emeritus of Astrophysics at the Institute for Advanced Study and an internationally renowned expert in both galactic-scale and planetary-scale astronomy. Topics that are part of this extensive conversation include the process of scientific discovery, in particular related to comets, Pluto, planetary rings, shepherding satellites, exoplanets, chaos theory and the formation, stability and uniqueness of our solar system.

Further topics include galactic-scale astronomy, galaxy formation, dark matter, quasars, black holes, the large-scale structure of the universe and many outstanding open questions of contemporary astrophysics.

This carefully-edited book includes an introduction, On Butterflies and Fish, and questions for discussion at the end of each chapter:

About Ideas Roadshow Conversations Series (100 books):

Presented in an accessible, conversational format, Ideas Roadshow books not only explore frontline academic research featuring world-leading researchers, including 3 Nobel Laureates, but also reveal the inspirations and personal journeys behind the research. Howard Burton holds a PhD in physics and an MA in philosophy, and was the Founding Director of Canada's Perimeter Institute for Theoretical Physics.