46K views · 231 reactions | NASA’s Solar Dynamics Observatory...

😯👉On February 4, the Sun unleashed an intense X4.2 solar flare, captured by NASA’s Solar Dynamics Observatory. Solar flares in the X-class category are the most powerful type, releasing enormous bursts of energy and radiation into space. This flare reached its peak at 7:13 a.m. Eastern Time and was carefully observed by researchers who track solar activity. Even though the radiation from flares like this cannot pass through Earth’s atmosphere to harm people on the ground, these eruptions can s

Did you know the solar cycle affects HF propagation for #hamradio? Professor N4BFR sums it up here. The 10M band is sensitive to the solar cycle. We're currently in solar cycle 25 which makes HF operation better between 2023 - 2026. So go to www.HamRadioPrep.com and get your license so you can join in! | Ham Radio Prep

(3/4) Tracking the solar cycle is a huge effort. It takes measurements of the Sun’s magnetic fields, complex models, and – most importantly – daily hand-drawn maps of the Sun’s surface ✍🏼 go.nasa.gov/3xbFz8p | NASA Space Alerts