Gregory Ryskin

Dr. Gregory Ryskin is an Associate Professor in the Department of Chemical and Biological Engineering at Northwestern University. His research spans cosmology, geophysics, fluid dynamics, and theoretical physics, with a recent focus on cosmological models addressing dark energy and vacuum energy. He holds dual PhDs in Chemical Engineering (Caltech) and Theoretical Physics (St. Petersburg Polytechnic Institute).

Research interests include cosmic expansion mechanisms, Earth's magnetic field generation, catastrophic geological events, and fundamental physics problems like Hawking radiation. His interdisciplinary work connects astrophysics with geophysical phenomena through fluid dynamical principles.

Publications include theoretical studies of vanishing vacuum energy (2020), cosmic repulsion (2015), and Hawking radiation (2014), alongside earlier contributions to fluid dynamics of polymers and liquid crystals. His 2010 paper on abrupt Earth events received recognition from paleontologist David Raup.

Dr. Ryskin's current work develops physics-based explanations for cosmological observations, providing alternatives to standard dark energy models through modified gravitational theories.