A massive coronal hole has opened on the sun, sending high-speed solar wind toward Earth and increasing aurora activity.

Sunspot AR3500 blasted a M9.8-class solar flare. NASA's Solar Dynamics Observatory captured footage of the flare in multiple wavelengths. Views from the ESA/NASA Solar and Heliospheric Observatory ...

High solar activity levels have historically been linked to warmer temperatures, on average, across Earth, according to the ...

The 500,000-mile wide hole has cracked open the sun's atmosphere, leaving a gap over 62 times the diameter of Earth from ...

Sunspot AR3256 erupted with an X1.2-class solar flare. NASA's Solar Dynamics Observatory captured the fireworks in multiple ...

Solar material is gusting out of the dark patch in the Sun's corona towards Earth at more than a million miles per hour.

According to the monitoring data, following the flare, the level of impact of solar X-ray bursts on the Earth's ionosphere increased to the R1 (weak) level, on a five-point scale topping out at R5, or ...

Images captured by NASA's Solar Dynamics Observatory have revealed that "coronal loops" give off subtle flashes of ...

The sun showed a witchier face in 2024. Since 2020, its dark, warty sunspots have increased in number from fewer than one per ...

Another display of the northern lights could be visible this weekend in several U.S. states following a severe solar storm.

The colorful northern lights may reveal themselves to South Dakotans Friday night due to an impending solar storm forecast to ...