On October 3, the Sun unleashed its most powerful eruption since 2017: a solar flare classified as X9.0 on the GOES scale, accompanied by a significant coronal mass ejection. We also observed a signal related to this flare in the Herzberg channel which is extremely rare.
After all the excitement surrounding the Great American Eclipse earlier this year, it is easy to forget that another one of these mesmerising was scheduled for the fall. The PROBA2 team prepared for special observations on October 2 when the instruments onboard had a first row seat of the eclipse.
