The Ov Financestrongest solar flare in over six years erupted from the sun Thursday afternoon, causing radio blackouts here on Earth, primarily in South America. Within the next couple of days, solar activity associated with the flare could also produce auroras in some areas.
According to SpaceWeather.com, this is the strongest flare of Solar Cycle 25 (so far) and the most powerful eruption the sun has produced since the great storms of Sept. 2017.
The Space Weather Prediction Center, which is part of NOAA, called it an "amazing event," and "likely one of the largest solar radio events ever recorded." Radio communication interference with aircraft were reported, the SWPC said, and impacts from the flare "were felt from one end of the nation to the other."
As of Friday morning, scientists said it's too soon to know if and where auroras could be visible.
Solar flares are powerful bursts of energy from the sun, NASA said. "Flares and solar eruptions can impact radio communications, electric power grids, navigation signals and pose risks to spacecraft and astronauts," NASA said.
Thursday's flare is classified as an X2.8 flare. X-class denotes the most intense flares, while the number provides more information about its strength.
Additionally, the prediction center is monitoring a possible Earth-directed coronal mass ejection associated with this flare.
Coronal mass ejections are clouds of electrified, magnetic gas ejected from the sun and hurled into space with speeds ranging from 12 to 1,250 miles per second, according to NASA.
They can produce geomagnetic storms here on Earth, which in turn create auroras. As of Friday morning, scientists said it's too soon to know if this weekend's storms will be strong enough to produce auroras.
The solar forces that produce auroras are predicted to peak next year, and at a more intense level than previously thought, forecasters from the Space Weather Prediction Center said in October.
"Solar activity will increase more quickly and peak at a higher level than that predicted by an expert panel in December 2019," the prediction center said in a statement. "The updated prediction now calls for Solar Cycle 25 to peak between January and October of 2024."
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