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Scientists report unified framework for diverse aurorae across planets

The awe-inspiring aurorae seen on Earth, known as the Northern and Southern Lights, have been a source of fascination for centuries. Between May 10 and 12, 2024, the most powerful aurora event in 21 years reminded us of the stunning beauty of these celestial light shows.

Reflecting on 5 Years at the Helm of JGR: Planets

¿Qué son y cómo se producen las auroras de rayos X de Júpiter? Misterio resuelto

Jupiter's auroras caused by magnetic field lines in plasma, study finds

What was known before was that auroras occurred when ions collided with the Jovian atmosphere, and that there is plasma among its magnetic field lines. Yao found that these ions crash into the atmosphere and release ions in X-ray form when these magnetic field lines trigger waves in the plasma. “The key question was what could periodically force ions to crash into Jupiter’s atmosphere,” Yao tells SYFY WIRE. “Then the question became: how are compressional waves and ion precipitations connected? Electromagnetic ion cyclotron waves are an ideal connection from theoretical plasma physics.” Back up just a second. We’ll get to electromagnetic ion cyclotron waves in a moment. But first, the observations.

Weltraumforschung - Rätsel der Jupiter-Polarlichter endlich gelöst