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,” ...

Add Yahoo as a preferred source to see more of our stories on Google. The sun on June 30. Magnetic fluctuations on the sun's surface can be seen here. Sunspots are cooler than other parts of the sun's ...

A massive, highly active cluster of sunspots produced over a dozen major solar flares on the far side of the Sun. The active ...

Solar Orbiter has spotted a large sunspot group forming on the opposite side of the Sun – if it's still active when it rotates into view, it could trigger solar flares.

All you need to do is make sure solar filters and eclipse glasses are free of marks, scratches, and holes. If they're still safe to use, you can wear them to watch the sunspot groups grow, decay, and ...

For many years now, the activity of the Sun’s 11-year solar cycle has been gauged through visible indications like sunspots, ...

Images of the far-side of the sun taken by the European Space Agency's Solar Orbiter of a giant sunspot region makes aurora likely after May 22.

The same group of sunspots that created intense northern lights on May 10 has now re-emerged from the back side of the sun. The group of sunspots is still really active with solar flares. As soon as ...

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, ...

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 ...