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

The solar cycle continues to ramp up with currently the largest number of sunspots in the last two decades and maybe even longer. NOAA’s Space Weather Prediction Center(SWPC) reports the estimated ...

NASA’s Solar Dynamics Observatory has been tracking an enormous sunspot group, with real-time images of the sun. Credit: NASA NASA scientists studying the sun have detected an enormous group of ...

The sun has seen its most active month for over two decades, with a monthly average of 215.5 sunspots being recorded in August. This is the first time the average monthly sunspot number has exceeded ...

While the Sun’s solar flares strongly correlate with sunspots, observations of more than 14,000 other stars show this is not generally the case.

Two new sunspots have ended a long period of relative quiet on the surface of our blazing host star, heralding the start of a new 11-year cycle of sunspot activity — resulting in sometimes dramatic ...

A team of Japanese and Belgian astronomers has re-examined the sunspot drawings made by 17th century astronomer Johannes Kepler with modern analytical techniques. By doing so, they resolved a ...

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 ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The sun has a ...

Transient dark features on the sun’s surface – sunspots – were first noted by astronomers in ancient Greece and China some 2500 years ago. We have been recording sunspot numbers since the early 17th ...

The cycle may result in dramatic space weather that could disrupt communications and power grids here on Earth. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...