X1.4 Solar Flare Sparks HF Blackouts and CME Days Before Artemis II; NASA Says Crew Not Concerned
An X1.4-class solar flare in the Artemis II launch window produced HF radio blackouts and launched a fast coronal mass ejection days before liftoff, prompting heightened monitoring of communications and radiation. NASA says the agency is not concerned for the crew, even as ESA reports storm-driven disruptions to Mars orbiters.