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Negli ultimi giorni il Sole è tornato a far parlare di sé: il Solar Dynamics Observatory della NASA ha registrato quattro brillamenti solari potentissimi, tutti di classe X – la più intensa e meno frequente. In un momento in cui l’attività solare ha raggiunto il massimo del ciclo, abbiamo chiesto a Renzo Ramelli, vicedirettore dell’Istituto Ricerche Solari IRSOL, di aiutarci a capire se siamo davanti a un fenomeno eccezionale.
Scopri la serie
https://www.rsi.ch/s/703908
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