Jim Klimchuk, Ph.D.

Research Astrophysicist

National Aeronautics and Space Administration







James Klimchuk is a research astrophysicist in the Heliophysics Division at NASA’s Goddard Space Flight Center.  He specializes in studying the solar corona—the multi-million degree outer atmosphere of the Sun that is the primary source of “space weather” disturbances that wreck havoc with technological systems here at Earth.

Dr. Klimchuk is the president-elect of AGU’s Space Physics and Aeronomy Section.  He is a former chair of the Solar Physics Division of the American Astronomical Society and of Commission 10 (Solar Activity) of the International Astronomical Union.  He has served on numerous panels and committees for NASA, NSF, and DoD, and currently chairs the committee the advises NASA on solar and heliospheric physics.  He is an honorary fellow of the Royal Astronomical Society.

Dr. Klimchuk received a bachelor’s degree in physics from Kalamazoo College and a PhD in astrophysics from the University of Colorado.  He was at Stanford University and the Naval Research Laboratory before joining NASA.