Every 11 years, the Sun flips its magnetic poles, driving a cycle of sunspot eruptions, solar flares, and coronal mass ejections that can knock out power grids and fry satellites. For decades, ...

For many years now, the activity of the Sun’s 11-year solar cycle has been gauged through visible indications like sunspots, ...

Scientists have long known that the Sun’s surface rotates faster near the equator, where it rotates about once every 25 days, than it does near the poles, where it rotates about once every 33 days.

Researchers at CU Boulder have discovered hints that humanity’s favorite star may have a dual personality, with intriguing discrepancies in its magnetic fields that could hold clues to the sun’s own ...

Scientists studying sound waves from deep inside the Sun have provided new insights into the solar dynamo within, which could help to explain how the Sun’s colossal magnetic field behaves. An ...

Solar cycle space weather models may be miscalibrated: a new helioseismology study found the Sun’s magnetic activity has retreated toward its surface since 1987 in ways sunspot counts never detected.

Scientists studying sound waves from deep inside the Sun have provided new insights into the solar dynamo within, which could help to explain how the Sun's colossal magnetic field behaves. An ...