A new study published in Nature Astronomy, led by Dr. Jie Yu, from the Australian National University, reveals that stars in close binary systems—pairs of stars orbiting each other at close range—can ...

Solar magnetic activity plays a pivotal role in driving a myriad of eruptive events in the corona, including flares, filament eruptions and coronal mass ejections. These phenomena arise from the ...

During these phases, sunspots and solar eruptions are uncommon. At this time, the Sun’s magnetic field is mainly dipolar. Signs of magnetic activity at active latitudes become hard to see.

The Astronomy Picture of the Day (APOD) for July 30, 2025, features an awe-inspiring image of coronal loops on the Sun, offering a rare glimpse into the dynamic behavior of our star. Captured by ...

A century of solar observations from Kodaikanal Solar Observatory and modern satellite data reveal patterns in the Sun’s polar magnetic activity, aiding predictions of future solar cycles.

A new model that posits the same physical process is responsible for magnetic field and the rotation patterns, contradicting previous theories that the sun’s magnetic field originates deep inside its ...