Sunspots — those marks that aren't freckles or moles — are signs you’ve spent your fair share of time soaking up the sun. “Sunspots are your skin’s response to daily exposure to ultraviolet rays,” ...

Sunspots AR3664 and AR3663 have been erupting with X- and M-class solar flares. Both sunspots are Earth-facing and could potentially deliver a solar storm. NASA's Solar Dynamics Observatory captured ...

Observing an eclipse of the sun is always fascinating, but on March 29, 2025 — when a partial solar eclipse is visible in the Northern Hemisphere — there will be an extra reason to do so. As well as ...

A whopping sunspot that is getting larger and crackling with activity threatens to flash powerful solar flares in our planet's direction. The sunspot, named AR3780, appears to be getting bigger and ...

NASA is constantly monitoring the Sun with the Solar Dynamics Observatory (SDO), which is an observation device built specifically for imaging and keeping track of the Sun, its magnetic field, its ...

With a techniques borrowed from earthquake detection, researchers are learning to predict where sunspots will boil-up. That ...

NASA has detected a large grouping of sunspots — dark patches on the sun — known as AR3576, which have increased in size in the last month and could be a risk for strong solar flares. Solar flares, ...

This amazing image from NASA’s Solar Dynamics Observatory (SDO) shows the power of our Sun in searing detail. Here, researchers captured a view of two enormous sunspots glowing brightly in blue and ...

A cluster of sunspots 15 times the size of Earth rolled into view. These have been fizzing with activity and could send solar weather toward Earth as early as Saturday. Space weather is mostly ...