Joe Giacalone is leading the SHIELD research efforts to understand Cosmic Rays (high energy particles from outside the heliosphere), interact with the heliosphere and are filtered (or possibly enhanced) by it.

Dr. Giacalone's core research interests include understanding the origin, acceleration, and propagation of cosmic rays, and other charged-particle species in the magnetic fields of space, and general topics in space plasma physics, and astrophysics.

He develops physics-based theoretical and computational models which are used to interpret in situ spacecraft observations. He is interested in the general properties of solar, interplanetary, and galactic magnetic fields. #nasa #science #space #arizona #UniversityOfArizona #beardown

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