solar flares

The sun is our nearest star and the source of all our light and heat on Earth but recent reports have highlighted an ongoing steep decline in solar activity.

A massive solar flare erupted from the sun on Tuesday (Jan. 7), rising up from what appears to be one of the largest sunspot groups seen on the star's surface in a decade, NASA officials say.

Colossal spiral-shaped flows of super-hot plasma have been found on the sun, completing a nearly half-century-long quest to confirm their existence, scientists say.

Astronomers have detected exotic antimatter particles flying from the sun during solar flares — a discovery that could help scientists understand this mysterious sibling to matter.

The sun fired off an M1.5-class solar flare on July 3 as an early preview to the Fourth of July fireworks, NASA officials say.

A large coronal mass ejection from the active sun could affect entire continents, scientists say.

The two X-class solar flares erupted from the surface of the sun less than 24 hours apart.

NASA's Solar Dynamics Observatory has been watching the sun for three years.