• Solar filament eruption, possible glancing blow on November 29

    A solar filament was observed lifting off the Sun's northeastern quadrant beginning at approximately 04:45 UTC on November 25, 2017. An associated weak Coronal Mass Ejection (CME) was observed in SOHO/LASCO C2 and C3 imagery and the analysis shows a potential…

  • Remarkable pink aurora outburst over Norway

    Over the past couple winters, big displays of pink and white auroras have coincided with spotless suns. The sight is often big enough to make observers wonder if there is a connection, SpaceWeather reports. The most recent remarkable outburst of pink auroras was…

  • CIR ahead of CH HSS sparks G1 – Minor geomagnetic storming

    A Co-Rotating Interaction Region (CIR) ahead of isolated positive polarity Coronal Hole High Speed Stream (CH HSS) is affecting our planet today, causing geomagnetic storming. G1 – Minor geomagnetic storm threshold was reached 05:30 UTC. Over the past 24 hours,…

  • Geomagnetic storms reaching G2 – Moderate levels, spotless Sun

    Earth is again under the influence of a recurrent, positive polarity, northern extension Coronal Hole High Speed Stream (CH HSS). G1 – Minor geomagnetic storm level threshold was reached at 11:55 UTC, followed by G2 – Moderate at 19:21 UTC. Over the past 24 hours,…

  • Recurrent, positive polarity CH HSS sparks geomagnetic storming

    Our planet is again under the influence of a recurring, positive polarity Coronal Hole High Speed Stream (CH HSS), which is causing isolated periods of G1 – Minor geomagnetic storming. Over the past 24 hours, solar wind parameters were indicative of the arrival of a…

  • Powerful double solar eruption beyond the east limb

    A powerful double solar flare eruption took place beyond the Sun's east limb early October 18, 2017. The responsible region is now rotating into Earth view and will be visible in a couple of days. The eruption was associated with a Type II (estimated velocity 1…

  • Geomagnetic storming reaches G2 – Moderate levels

    Our planet is under the influence of coronal hole high speed stream (CH HSS) for the third day in a row. The geomagnetic field was unstable, with isolated periods of G1 – Minor storm levels during the past two days and then increased to G2 – Moderate levels at 14:59…

  • Spotless Sun, CH HSS sparks geomagnetic storms

    Geomagnetic storming reaching G1 – Minor levels is underway as our planet moves through a stream of high-speed solar wind. At the same time, solar activity is at very low levels with no flare activity and a spotless Sun on its Earth-facing side. Over the past 24…