A significant solar event is anticipated to impact Earth, with plasma ejected from the Sun expected to arrive on the night of September 2nd. This phenomenon is projected to trigger strong geomagnetic storms, potentially reaching G3 level, as reported by the Solar Astronomy Laboratory of the Space Research Institute (IKI RAS).
Scientists had previously observed two distinct plasma ejections and a powerful solar flare. One of these medium-sized plasma clouds was directed towards Mercury and Venus, while the second was unequivocally aimed at Earth.
«Modeling results for yesterday`s plasma ejection along the Sun-Earth line have been finalized. According to our calculations, the solar material will reach Earth tomorrow, September 1st, between 11 PM and midnight Moscow time,» stated the Laboratory in a Telegram channel update.
The plasma is moving at a considerable speed, approximately 900 kilometers per second. A more precise geomagnetic forecast is expected to be released on Sunday afternoon.
«Initially, a G3 storm level (strong events, not observed for about 3 months) is considered the most probable, with a roughly 20% chance of reaching G4 at its peak. The likelihood of a top-tier G5 storm is practically negligible, less than 1%,» the Laboratory further clarified.
Upon impact with the magnetosphere and for several hours thereafter, intense auroral displays are expected, with their lower boundary potentially extending as far south as 55 degrees latitude. Furthermore, the Sun continues to show a high probability of both powerful flares and subsequent plasma ejections directed towards Earth.
Published: August 31, 2025
