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Space Weather and Van Allen Probes

NASA's Van Allen Probes orbit through two giant radiation belts that surround Earth. Their observations help improve computer simulations of events in the belts that can affect technology in space. Image Credit: JHU/APL, NASA

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Judith Karpen Named AAS 2022 Fellow

Photo of Judith Karpen Judith Karpen has been named a Fellow of the American Astronomical Society. She was honored for her sustained contributions to understanding the formation and dynamics of the solar corona and wind.

Karpen is a research astrophysicist and Chief of the Space Weather Laboratory in the Heliophysics Division. She received her Bachelors of Science in Physics (Honors) from the University of Michigan in 1973 and her PhD in Astronomy from University of Maryland in 1980, followed by a postdoctoral position with the Solar Physics Branch, Space Science Division, NRL. From October 1982 until September 1984, she was a staff scientist with Berkeley Research Associates, working at the Laboratory for Computational Physics, NRL. From October 1984 to July 2008 she was a research physicist in the Solar-Terrestrial Relationships Branch of the Space Science Division of the Naval Research Laboratory. She joined the Space Weather Laboratory in July 2008.

Her primary research interests include analytical and numerical modeling of dynamic solar and heliospheric phenomena, and applications of plasma physics and magnetohydrodynamics to solar and heliospheric activity. Her current research is focused on solar prominences, coronal mass ejections/eruptive flares, and magnetic reconnection.
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The Space Weather Laboratory performs research and analysis of the physical processes underlying space weather. It conducts space-based, ground-based, theoretical, and modeling studies of the chain of events that triggers space-weather effects of interest to NASA, other U.S. government agencies, and the general public. Laboratory staff lead the development of space environment projects and missions, and provide project scientists for NASA flight missions with space weather applications. The Laboratory communicates NASA research results to the scientific community, various space weather interests, and the general public.

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