A strong solar flare erupted from a sunspot facing Earth on June 30, causing radio blackouts across parts of North America.

Solar flares are powerful bursts of radiation from the sun's surface, which can wreak havoc on Earth's power grids, damage orbiting satellites, and pose serious radiation risks to astronauts. Yet ...

Earth’s magnetic field was rattled by a solar outburst that arrived with almost no warning, lighting up skies and briefly reminding power grid operators and satellite controllers how vulnerable modern ...

Cryptocurrency investors face an unusual danger lurking 93 million miles away. Solar flares, massive bursts of energy from the sun’s surface, can interfere with the digital infrastructure that keeps ...

Considered our solar system's largest explosive events, solar flares can sometimes be as strong as a billion hydrogen bombs. Those with enough energy output to rank as an X-class have the potential to ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. NASA’s Solar Dynamics Observatory captured this image of a solar flare — seen as the bright ...