The massive sunspot that sparked an "extreme" geomagnetic storm in May 2024 unleashed hundreds of other dangerous solar ...

One way to track the solar cycle is by counting the number of sunspots, which are dark, cooler patches on the Sun’s surface.

Sunspots AR3664 and AR3663 have been erupting with X- and M-class solar flares. Both sunspots are Earth-facing and could ...

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, ...

Sunspots and their behavior are direct manifestations of the Sun’s magnetic field, which we still don’t fully understand. Here’s what we do know: Ex-tremely hot gas, called plasma, in the Sun’s outer ...

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 ...

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,” ...

Astronomers have released photos of huge dark patches on the sun that are big enough to swallow our planet whole. These dark patches, known as sunspots, are of interest to astronomers because they ...

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 ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Sure, the sun’s light and heat make life possible on Earth, and ...