The unexpected surge of solar activity during the ongoing solar maximum may be tied to a lesser-known, 100-year-long cycle that is just beginning to ramp up again, a new study suggests. If that's true ...

You could get more opportunities to see supercharged auroras over the next few months, thanks to our very active sun. Solar activity waxes and wanes on an 11-year cycle. The current cycle, known as ...

Solar Cycle 25 has begun. During a media event on Tuesday, experts from NASA and the National Oceanic and Atmospheric Administration (NOAA) discussed their analysis and predictions about the new solar ...

Medieval poets wrote about auroras. Their work is providing clues to the solar cycle Medieval poets, including a Japanese noble, provided key descriptions to track down solar events ...

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As Solar Cycle 25 peaks, learn how increased sunspots and ionospheric ionization are boosting shortwave radio propagation.

Despite only being halfway through our current solar cycle, the sun is showing signs of starting another. The sun is approaching the solar maximum of its current 11-year solar cycle, meaning that it ...

On Oct. 15 NASA and the National Oceanic and Atmospheric Administration (NOAA) jointly announced that the sun had entered solar maximum, a stretch of time when its activity is at or near peak. There ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and ...

This split image shows the difference between an active Sun during solar maximum (on the left, captured in April 2014) and a quiet Sun during solar minimum (on the right, captured in December 2019).

Every morning, astronomer Steve Padilla takes a short walk from his home to the base of a tower that soars 150 feet above the ground. Tucked in the San Gabriel Mountains, about an hour’s drive north ...