415 reactions · 150 shares | What is a solar flare? What causes solar flares? How do solar flares affect Earth? Find out the answers to these questions and more in our new solar flare FAQ!  https://go.nasa.gov/3mFimHr | NASA Space Alerts | Facebook

M5.1 Solar Flare Triggers Radio Blackout on Earth #SolarStorm A powerful M5.1 solar flare erupted from the Sun’s Earth-facing side, causing a moderate R2 radio blackout across parts of the sunlit side of our planet. ☀️🌍 The flare originated from an unnumbered active region near AR 4323, disrupting high-frequency (HF) radio communications used in aviation, maritime operations, and emergency services. Although the flare has subsided, scientists at NOAA are closely monitoring the active region for

The Sun emitted a strong solar flare on Nov. 30, 2025, peaking at 9:49 p.m. ET. NASA’s Solar Dynamics Observatory captured an image of the event, which was classified as X1.9 class: go.nasa.gov/4alXf6P Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth’s atmosphere to physically affect humans on the ground. However — when intense enough — they can disturb the atmosphere in the layer where GPS & communications signals travel. To see how such sp