Scientists have recorded more than 30 solar flares in two days.

In less than two days, 35 class C and higher flares were registered on the Sun, while the intensity of solar activity continues to increase rapidly. This was announced on November 7 by the press service of the Space Research Institute of the Russian Academy of Sciences (RAS).

"There is a rapid increase in flare activity on the Sun. Yesterday, 18 class C and higher flares were registered by space tracking devices (these are common and large events). Today, in the first 12 hours at the time of the release of the message, 17 more events were added to them," says a message on the Telegram channel of the Laboratory of Solar Astronomy.

Experts admit that by the end of the day, their total number in two days may increase to 40-50. At the same time, there was almost no solar activity at the beginning of the week: there were no flares on Monday and Tuesday, and three events each occurred on Wednesday and Thursday. Among them was the M3.6 class flare, which became the most powerful since the beginning of October.

The source of the sharp increase in activity was a large group of sunspots located almost in the central part of the star's visible disk. According to the preliminary assessment of the researchers, in this area there is an intensive flow of energy from the solar interior into the atmosphere, accompanied by numerous flashes of medium power. This type of activity allows energy to be released gradually, reducing the likelihood of its accumulation for more destructive events. However, experts do not rule out that with a further increase in energy flows, more powerful outbursts may occur.

The current indicators are already approaching the maximum values recorded in one day. According to the IKI RAS, the historical peaks of daily flare activity were about 25-30 events. In particular, on December 10, 2024, 29 flares occurred on the Sun, which presumably became a record for the current solar cycle. The last time a comparable number of events were observed was on August 19, 2026, when scientists recorded 19 outbreaks.

Experts are also concerned about the state of the Earth's magnetosphere, which was affected by a large coronal hole last night. Despite the absence of magnetic storms, the geomagnetic situation remains unstable. In the event of powerful solar flares and the subsequent impact of their emissions on the Earth, magnetic field disturbances can increase significantly, up to the occurrence of high-level magnetic storms.

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On November 2, a small and weak Class C flare occurred on the Sun, which disrupted the four-day lull period. The researchers shared the relevant observation as part of a small forecast of solar activity for early November. So, according to their observations, a calm geomagnetic situation and low flare activity are now predicted.