Guest: Ziv Williams, Associate Professor in the Department of Neurosurgery at Harvard Medical School.

Guest: Dr. Brian D. Appelbe - Research Fellow in the Physics Department at Imperial College London.

Guest: David Henshall - Professor of Physiology and Medical Physics at RCSI and author of Fine-Tuning Life: A Guide to MicroRNAs, Your Genome's Master Regulators.

Dirk Leder - Research associate in the office for Cultural Heritage in Lower Saxony.

Lorina Naci - Associate Professor, leader of the 'Consciousness and Cognition' group at TCD.

Dr. Gregory Moore - Senior Research Associate, School of Agriculture, Food and Ecosystem Sciences at The University of Melbourne joined Jonathan on the show.

Robin Tanamachi - Associate Professor in the Department of Earth, Atmospheric, and Planetary Sciences at Purdue University, joined Jonathan on the show

This week, Jonathan was joined by Oliver Morton, Senior Editor at The Economist and author of The Moon: A History For The Future and by Sarah T. Stewart, Planetary Scientist and Professor in the Department of Earth and Planetary Sciences at the UC Davis.

Sadie Dingfelder - Author of Do I Know You?: A Faceblind Reporter’s Journey into the Science of Sight, Memory, and Imagination

Nora Newcombe - Laura H. Carnell Professor of Psychology and Neuroscience at Temple University @NoraNewcombe