俄机构：太阳一小时内连续爆发两次M级耀斑

Core Points - The Russian Academy of Sciences' Space Research Institute reported two M-class solar flares occurring within one hour on November 3, with one recorded at M5.0 level at 13:11 Moscow time [3] - Scientists predict an increase in solar activity and its impact on Earth in the coming days [3] - Solar flares are one of the most intense phenomena on the Sun, characterized by a sudden brightening in localized areas of the solar atmosphere, often accompanied by enhanced electromagnetic radiation and particle emissions [3] - Solar flares are classified into five levels (A, B, C, M, X) based on energy, with each level further divided into ten grades [3]