• New observations of Ganymede reveal a striking similarity between the auroras on the largest moon in the solar system and those on Earth. • The international team of astrophysicists, led by researchers from the University of Liège, has produced new results indicating that, despite different conditions, the fundamental physical processes that generate auroras are common to different celestial bodies, and not just planets.
Article Summaries:
- New observations of Ganymede, the solar system’s largest moon, have revealed that its auroras closely resemble those seen on Earth. An international team of astrophysicists, led by researchers from the University of Liège, used data from recent missions to map the moon’s polar light displays. The study shows that, despite Ganymede’s different magnetic field, atmospheric composition, and distance from the Sun, the fundamental physical processes that generate auroras are essentially the same as on Earth. These findings suggest that auroral mechanisms are common to a wide range of celestial bodies, not just planets, broadening our understanding of magnetospheric physics across the Solar System.
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