This geomagnetic storm interfered with telegraph communications around the globe. Sparks reportedly leapt from telegraph ...

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

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

A solar radiation storm stronger than one we've seen in over two decades is in progress, the Space Weather Prediction Center announced Monday.

A powerful flare unleashed a severe solar storm that caused auroras and GPS disruptions on Earth.

Tree rings hold clues about ancient solar storms. New research shows tree growth and carbon storage can shift those signals across years.

Earth has been struck by its strongest solar radiation storm in over 20 years, triggering rare aurorae far from the poles and raising concerns for satellites, aviation, and power grids.

A powerful solar storm, one of the strongest in over 20 years, caused rare red auroras by disturbing Earth's magnetic field ...

The northern lights were visible across Massachusetts on Monday night due to an increased geomagnetic activity caused by a ...

Auroras occur when solar wind collides with Earth’s magnetic field, creating dazzling lights. Learn why auroras appear in red ...

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.