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Dr. James O'Donoghue

Planetary Scientist
Japan Aerospace Exploration Agency (JAXA)


I'm a planetary scientist specializing in ground-based astronomy of giant planet upper atmospheres, in particular Jupiter, Saturn and exoplanets. My general research goals are to understand how planetary upper atmospheres interact with space forcing from above and weather systems from below. Specifically I study ionospheres, magnetospheres, storms like Jupiter's Great Red Spot and also the mechanism by which Saturn's rings rain icy dust onto the planet (called ring rain).