Hidenori Terasaki is a Professor in the Department of Earth and Space Science at Osaka University. Hidenori’s research focuses on studying the earth interior composition, with particular emphasis on measuring density, viscosity, interfacial tension, temperature and pressure related to mantle and core properties and formation. He is a recipient of the young scientist research award in the Mineralogical Society of Japan and Japan Society of High Pressure Science and Technology. He is a member of the American Geophysical Union, The Japan Society of High Pressure Science and Technology, The Iron and Steel Institute of Japan, Japan Association of Mineralogical Sciences and The Japanese Society for Planetary Science. Rebecca Fischer is a PhD candidate in the Department of the Geophysical Sciences at the University of Chicago. Her research focuses on the formation and chemical evolution of the Earth, with particular focus emphasis on the physical and chemical properties of minerals and melts at extreme conditions. She uses diamond anvil cells and laser-heating to experimentally recreate the high pressures (up to >150 GPa) and high temperatures (several thousand K) of the Earth’s deep interior, combined with numerical simulations of accretion. She has been the recipient of organizational fellowships and scholarships (NSF) for her scholarly research on the Interior of the Earth.