Savvas Raptis

I am a space plasma physicist and Senior Professional Staff member at the Johns Hopkins University Applied Physics Laboratory. My research in heliophysics examines how collisionless shocks and transient plasma structures transfer energy and accelerate particles, connecting the solar wind with planetary space environments and space weather.

My work combines multi-spacecraft observations, statistical modeling, and artificial intelligence (AI), including machine learning (ML), to understand plasma dynamics and develop data-driven models for space-weather applications. I also develop methods for plasma-region classification, event detection, and comparisons between spacecraft observations and simulations.