Savvas Raptis

I am a researcher in plasma physics at the Johns Hopkins University Applied Physics Laboratory (Space Exploration Sector), focusing on experimental heliohpysics, statistical modeling, and spacecraft data analysis.

My research focuses on key areas of heliophysics, astrophysics, and plasma physics, including collisionless shock dynamics, particle acceleration, space weather, and localized transient processes in near-Earth and planetary systems.

My primary expertise includes statistical modeling and analysis, neural-network and machine-learning applications, kinetic plasma physics, and multi-spacecraft or multi-mission data analysis from both in situ and remote-sensing instruments. I am currently working on machine-learning models for space-weather applications, investigating particle energization across planetary and astrophysical systems, and developing robust methods for unbiased comparisons between simulations and spacecraft observations.