Northern lights occur when a solar flare interacts with Earth's atmosphere.
The Sun fired off six X-class flares in the first four days of February 2026, a burst of extreme activity spanning roughly 400,000 miles of the solar disk. That stretch covers nearly half the Sun’s ...
Richard Carrington’s name has long been connected with the most intense solar storm ever recorded, but his face was unknown until a lost portrait surfaced.
Recent X8-class solar flare activity reveals critical weaknesses in America's power grid, where geomagnetic currents could destroy transformers and trigger prolonged blackouts.
An Arizona-based astrophotographer has pulled off what may be an unprecedented feat in photography: capturing a skydiver in free fall perfectly aligned with the surface of the sun. Andrew McCarthy, ...
A rapidly growing sunspot has fired off at least 18 M-class and three X-class flares in just 24 hours, including an intense X8.3 eruption.