The Sun follows a 22-year magnetic cycle, with solar activity rising and peaking roughly every 11 years. But when conditions ...

A sunspot, potentially generating multiple solar flares, may lead to auroras that could be visible as far south as Alabama.

Solar flares and other activity can disrupt radio communications, power grids and navigation signals, according to NASA.

Scientists can usually spot coronal mass ejections before they affect Earth—but this one snuck past coronagraphs and ...

A space and radiation expert is disputing Airbus' recent explanation of an in-flight incident that left at least 15 people ...

For three decades, the Solar and Heliospheric Observatory (SOHO) has been our eyes on the Sun, unveiling mysteries of solar ...

A powerful X1.9 solar flare from new sunspot AR4299 triggered strong radio blackouts, as giant sunspot AR4294 rotates into ...

NASA has drafted its Mars rover Perseverance to help monitor the sun’s activity. Every day for the next two months, the rover ...

Researchers from HSE University and the Space Research Institute of the Russian Academy of Sciences analyzed seven years of data from the ERG (Arase) satellite and, for the first time, provided a ...

Climate data in a report published by the National Oceanic and Atmospheric Administration’s (NOAA) Climate.gov website found that the sun’s solar activity, including overall brightness and sunspot ...

Ancient Chinese astronomers observed a solar eclipse in 709 BCE with remarkable detail. These old records are now helping ...

Because this record survived, we know more about ancient Chinese history, the rotation of the Earth, and past solar activity ...