Ultraviolet view of the Sun at maximum and minimum shows the difference in solar activity at the visible surface

Astronomy & Observing News

The Solar Cycle Leaves Its Fingerprint on the Sun’s Interior

Astronomers have used 40 years’ worth of data to peer inside the Sun, revealing that the solar cycle can leave a distinct fingerprint beneath the visible surface.

Averaged image of the solar south pole

Astronomy & Observing News

The Sun's Poles Are Different Than We Expected

A new analysis of the Solar Orbiter's unique views of the Sun's poles shows how a "conveyor belt" moves within our nearest star.

Image of the Sun

Astronomy & Observing News

The Sun's Activity Is Reaching a Fever Pitch

The Sun is approaching the peak of this solar cycle, which means a higher chance of sunspots, flares, and aurora.

Astronomy & Observing News

New Forecast Resets Solar Cycle Expectations

A new forecast suggests that sunspot numbers, aurorae, and other solar activity will peak sooner and at a higher level than expected.

solar flare

Astronomy & Observing News

The Sun's Ramping Up Activity — But Still Weaker Than in the Past

The Sun has recently experienced an uptick in activity, with lots of sunspots accompanied by flares, coronal mass ejections, and visible auroras — but experts still expect a mild solar cycle.

solar flare

Astronomy & Observing News

The Sun Is Waking Up — Right On Schedule

The Sun is ramping up activity, but contrary to some reports, this solar cycle is still consistent with scientists' predictions.

Astronomy & Observing News

Astronomers Map the Solar System's Edge in 3D

Collecting high-speed atoms has enabled researchers to trace the shape of our Sun’s protective bubble.

Solar eruption

Astronomy & Observing News

Tree Rings Help Reconstruct a Millennium of the Sun's Activity

Astronomers are using tree rings as a historical record of solar activity — and they've found that the Sun was much more active in the past.

Sunspot, in detail

Astronomy & Observing News

Will the Next Solar Cycle Surprise Us?

The coming months will test a new prediction that — contrary to most expectations — forecasts one of the strongest sunspot cycles on record.

Sunspots at solar minimum vs. maximum

Astronomy & Observing News

The Sun’s Activity Cycle Is Stabilizing

Solar Cycle 25 is here, and forecasts suggest the next decade of the Sun’s activity will mimic the last one — halting a 40-year trend.

Spotless Sun

Astronomy & Observing News

Is Our Sun Slowing Down in Its Middle Age?

The Sun, now halfway through its life, might be slowing its magnetic activity, which could lead to permanent changes in the sunspots and auroras we see.

Magnetic manifestations

Sun

Fun in the Sun: A White-Light Guide to Our Nearest Star

We examine the fascinating solar phenomena that anyone with a small scope and safe solar filter can see, whether the Sun's in eclipse or not.

Sunspot cycle

Astronomy & Observing News

The Weakest Solar Cycle in 100 Years

Scientists are struggling to explain the Sun’s bizarre recent behavior. Is it a fluke, or a sign of a deeper trend?