• Solar filament eruption sent Earth-directed CME

    A Coronal Mass Ejection (CME) was observed on November 9, around 15:24 UTC. It was associated with  filament eruption around sunspot 1608 in the southeast quadrant of the disk. This region is facing  Earth and any  Coronal Mass Ejection (CME) may be geoeffective.

  • Sun hurled two bright CMEs into space, both non-Earthbound

    New region 1611 rotated into view on the east limb and produced a moderate M1.7 flare at 02:23 UTC and a type II radio sweep shortly after, on November 8, 2012. Flare generated bright coronal mass ejection (CME) in eastward direction which means that it would not

  • STEREO satellites recorded 8 CME’s over two-day period

    The Sun produced a series of at least eight coronal mass ejections (CMEs) over a two-day period (November, 2-4, 2012). Some of them overlapped each other as the Sun burst some of them into space in a rapid-fire style. The series was taken by the STEREO Ahead spacecraft

  • Three CMEs observed on western limb, one could be geoeffective

    Magnetic filament eruption took place beyond the western limb, producing a halo or partial-halo CME on November 3. In fact, three CME clouds were ejected into space, with one appeared to have slight chance to become geoeffective. Minor solar wind stream from

  • Weak CME impact caused unsettled geomagnetic field levels

    A weak CME shock was observed in the solar wind by the ACE and SOHO/CELIAS instruments on October 31st afternoon around 14:45 UTC. The solar wind speed jumped up from 280 km/s up to 370 km/s and also the solar wind density increased. Initial solar wind velocity had

  • The explosion that shattered solar theory

    In January 2005, some remarkable things happened on the Sun, and the implications are still reverberating through the scientific community. Between January 15th and 19th four powerful solar flares erupted from “sunspot 720”, shown in the picture above. Then on January