The sunspot region 4366 fired off dozens of powerful solar flares in 24 hours, including the single strongest flare since 2024. Auroras are possible later this week.

In a dramatic escalation of solar activity, the sun has unleashed an X8.3 flare — 2026’s strongest yet — causing radio ...

Multiple M-class and X-class solar flares erupted within 24 hours as an active sunspot released intense radiation affecting ...

The flare was part of a series of three X-class solar eruptions that occurred between late February 1 and early February 2.

The NOAA Space Weather Prediction Center has confirmed that severe G4 geomagnetic storm conditions have already been reached ...

Earth just experienced a rare S4 solar radiation storm, the most intense since 2003 — powerful for satellites and astronauts, ...

Earth will be experiencing the largest solar radiation storm in over 20 years today, according to the National Weather ...

What happened 14,300 years ago is barely believable. A paper published this week in Earth and Planetary Science Letters details a study of tree rings in the French Alps that reveals evidence of an ...

An international team of scientists has discovered an extreme spike in radiocarbon corresponding to the year 12350 BC during the dusk of the last Ice Age. However, the strength of the event could not ...