• Prominence eruption produces large CME off southeast limb

    A large coronal mass ejection (CME) was produced by a prominence eruption off the Sun’s southeast limb at 04:30 UTC on August 20, 2025. The CME is not Earth-directed, and solar activity is forecast to remain at very low to low levels, with a slight chance for M-class flares in the coming days.

  • Solar tornadoes not rotating after all, study shows

    According to a team of European scientists, solar tornadoes are not rotating after all. Their new analysis of these gigantic structures, each one several times the size of the Earth, indicates that they may have been misnamed because scientists have so far only been…

  • 2013 July solar prominences

    This movie provides an overview of nine great solar prominences that were visible in July 2013.

     

    Credit: Jan Janssens

    Featured image: Solar prominence on July 25, 2013 captured by SDO's AIA 304 (Courtesy of NASA/SDO and the AIA, EVE, and HMI

  • Large solar prominence on the northwest limb

    A large prominence lifted off the northwest limb on July 21, 2013 and generated a Coronal Mass Ejection (CME), directed to the north and away from Earth. 

     

    STEREO Ahead and STEREO Behind COR2 images show the prominence flaring on July 22, 2013

  • M1.0 solar flare erupted from AR 1760

    Impressive M1.0 solar flare erupted at 20:00 UTC on May 31, 2013. Event started at 19:52 UTC and ended at 20:06 UTC. The source of eruption was Active Region 1760. This region is small but appears to have a large amount of shear in the central spot.

    M1.0 solar

  • Large prominence eruption and strong C-class solar flare

    Strong solar flare erupted on May 9, 2013 at 22:52 with peak at 23:15 UTC as C9.1 flare, just below M-class threshold. The event was centered around old returning Sunspot 1726. It will be on the visible solar disk in the next 24 hours when it will be designated as

  • Solar watch – Huge prominence eruption May 1, 2013

    A spectacular prominence eruption was observed on the Sun on May 1, 2013 at 02:30 UTC. The event was classified as a farside eruption from active region located beyond eastern limb. This was the largest such event in quite some time now.

    Powerful blast was unleashed