A powerful solar flare erupted from the sun on May 10, reaching M5.7 strength. This energy surge released a coronal mass ejection (CME) that might skim past Earth. If it does, we could see stunning northern lights in places that usually don’t experience them.
The flare peaked at 9:39 a.m. EDT from a sunspot called AR4436. As this area rotates into our “strike zone” on the sun’s surface, it has a higher chance of releasing more major flares and CMEs aimed toward Earth.
Currently, much of the CME is heading east of our planet. However, both the NOAA Space Weather Prediction Center and the U.K. Met Office predict that part of this solar material might still graze Earth around May 13. If it does, minor geomagnetic storms could light up the skies in northern parts of the U.S. and the U.K.
Solar flares are classified into categories A, B, C, M, and X, with each category representing a tenfold increase in energy. The recent M5.7 event is strong enough to disrupt radio communications, as reported by NOAA. Radio blackouts occur when the sun’s intense radiation ionizes Earth’s upper atmosphere, interfering with high-frequency signals utilized by pilots and amateur radio operators.
Interestingly, this year’s flare occurs exactly two years after a major G5 geomagnetic storm, the strongest since 2003, which led to breathtaking auroras visible in unusual locations far from the poles. Last time, skywatchers in southern states like Florida were treated to an incredible light show.
While the current CME isn’t expected to create an event nearly as spectacular as the 2024 storm, a slight brush with Earth could still bring about some light displays.
Experts like those from NOAA and the U.K. Met Office anticipate more solar activity soon. They suggest that we might still witness additional M or even X-class flares in the coming days as sunspot regions evolve. Stay tuned to space weather forecasts for updates!
For those wanting to learn more about solar flares and their impacts, you can check out this resource for a deeper dive.
