The sun’s current 11-year activity cycle has already peaked—but extreme outbursts from our star may still be in store ...

The quiet arrival offers another indication that the sun is moving into the declining phase of its 11-year cycle.

The last in a series of three coronal mass ejections hit Earth on Wednesday, so experts are keeping an eye on geomagnetic ...

A severe geomagnetic storm put the power grids in at least 11 states at risk this week, posing a threat to millions.

This week, as spectacular auroras were visible across the country, I was curious to learn more about the geomagnetic storms ...

Increased solar activity is causing colorful auroras to occur in unexpected places. A large solar storm is set to reach Earth ...

It took place over 14,000 years ago, and now is rewriting what we thought the Sun could do.

This gap in knowledge has long prevented scientists from fully understanding the dynamics of solar activity, which can ...

Comet 3I/ATLAS recently emerged from behind the glare of the sun to become visible to ground-based telescopes.

KENNEDY SPACE CENTER — SpaceX launched three satellites early Wednesday on a million-mile trip to tackle the mysteries of space weather, including how to protect from the sun’s disruptive and ...

NASA and the National Oceanic and Atmospheric Administration have launched three new missions to enhance understanding of solar wind and space weather. Three spacecraft were sent up this past week on ...

For the first time ever, astronomers have spotted a powerful coronal flare (cme) from a star other than the Sun.