The sunspot AR 3842 remains active as it exits the sun's western limb, firing off an X2.1 solar flare on Monday afternoon (Oct. 7).
The sunspot
, which also unleashed the historic X9.05 solar flar… [+2486 chars]
Regions North America
The sun fires off another powerful X flare, triggering radio blackouts across the Americas (video)
An X2.1 solar flare erupted from the prolific sunspot AR 3842 on Monday (Oct. 7), triggering radio blackout across North and South America.
