Solar flares are classified based on their strength and fall into five designated categories: A, B, C, M and X. An X-class ...

After last week's explosive X-flare, sunspot AR4046 is at it again! Could this latest eruption bring stormy space weather to ...

A geomagnetic storm watch predicts northern lights across the northern U.S. and Midwest this week, following solar eruptions ...

The Origin of the Sun's Magnetic Field Could Lie Close to Its Surface May 22, 2024 — Surprise findings suggest sunspots and solar flares could be generated by a magnetic field within the Sun's ...

Photography experts told National Geographic that a wide-angle lens, an aperture or F-stop of four or less and a focus set to the furthest possible setting are recommended to capture the northern ...

A powerful X-class solar flare was unleashed by an emerging sunspot region leading to radio blackouts over large parts of ...

A powerful X1.1-class solar flare causes radio blackouts across the Americas. It was followed by a coronal mass ejection.

Scientists had observed this before, but the total solar eclipse made the connection much clearer. Solar flares from the sun ...

Multiple spacecraft captured the moon's shadow sweeping across North America at more than 1,500 mph during the 2024 total ...