A rapidly growing sunspot has fired off at least 18 M-class and three X-class flares in just 24 hours, including an intense ...

Imagine standing on a snowy mountain ridge. A single fracture forms in the ice crust, or a small patch of heavy snow shifts ...

(NEXSTAR) – A solar radiation storm stronger than one we’ve seen in over two decades is in progress, the Space Weather ...

F or all of its life-sustaining energy, the sun is pretty chaotic. Roiling plasma covers its surface along with fluidic snarls of magnetic fields that birth solar flares. These fiery outbursts occur ...

Largest solar radiation storm in more than 20 years could trigger auroras on Earth - A solar radiation storm this large has ...

Scientists watched a solar flare grow from tiny magnetic sparks into a violent plasma-raining avalanche on the Sun.

Solar Orbiter observations show that a medium-class solar flare formed through cascading magnetic reconnection events, ...

The ESA's Solar Orbiter has discovered that solar flares act like avalanches, growing from weak disturbances into powerful ...

Federal forecasters are warning that a powerful X-class solar flare could trigger strong radio blackouts and strain power ...

NASA explained that the flare was classified as an X1.9 flare. X-class flares are the most powerful type of solar flares. The number 1.9 shows how strong the flare was within this highest category.

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Thermal image of an eruption or flare on the surface of the ...

It is the strongest solar radiation storm in over 20 years, since October 2003. The powerful weather event is expected to ...