Solar Storms and Flares - NASA Science

A strong X1.9 solar flare erupted from the sun's surface at 9:49 p.m. ET on Nov. 30, and NASA’s Solar Dynamics Observatory caught it in action. The flare appears as a bright flash on the Sun’s edge, followed by a plume of hot material rising into space. Solar flares are powerful bursts of energy. They can disturb radio communications, affect navigation signals, and pose risks to spacecraft and astronauts — which is why NASA and NOAA track them so closely. Credit: NASA/SDO | Space 360

Solar Activity Report: October 13-19, 2025 Solar activity persisted at moderate levels throughout the week, with M-class flares occurring daily. Active Region 14246 was the dominant source, contributing 25 of the 28 M-class flares recorded during the reporting period. The most intense event was an M4.8 flare on October 15. Notably, even after crossing the west limb on October 18, the region continued to produce M-class activity, including M1.0 and M1.8 flares on October 19. There were numerous C

Solar Activity Report: September 22-28, 2025 Solar activity fluctuated between low and moderate levels throughout the week. The week began quietly, marked by low C-class flares. Activity then intensified, reaching moderate levels with several high C-class and M-class flares. By midweek, conditions briefly returned to low levels before rising again the following day and remaining moderate through the weekend. In total, 59 C-class and 8 M-class flares were recorded, with the most intense event—a p

How NASA Tracked the Most Intense Solar Storm in Decades - NASA Science