A powerful X1.9 solar flare from new sunspot AR4299 triggered strong radio blackouts, as giant sunspot AR4294 rotates into view with more activity likely.

Sun unleashes powerful X-class solar flare, knocking out radio signals across Australia

Source: space
Source Link: https://www.space.com/astronomy/sun/sun-unleashes-powerful-x-class-solar-flare-knocking-out-radio-signals-across-australia-dec-1-2025