• Strong activity on the far side of the sun

    NASA’s STEREO probes are monitoring strong activity on the far side of the sun. A spectacular CME erupted during the early hours of April 8th apparently from old sunspot AR1176. This is the second day in a row that the active region has hurled massive clouds into

  • Geomagnetic storm in progress (April 6, 2011)

    The solar wind is blowing past earth at elevated levels today and combined with a south tilting Bz, is stirring up geomagnetic storming at high latitudes. C-Class flare activity is now taking place towards the new sunspot regions just to the east of Sunspot 1185. Keep

  • Massive solar disturbance & CME on Far-side of Sun

    NASA twin STEREO spacecraft observed a spectacular coronal mass ejection launched from the vicinity of decaying sunspot 1176 on April 3rd around 0500 UT. The blast was not Earth directed. Nevertheless, there is a chance that the expanding cloud will deliver a glancing

  • Earth is entering a stream of solar wind

    Earth is entering a stream of solar wind blowing ~500 km/s, and the encounter is stirring up geomagnetic activity around the Arctic Circle. The solar wind data (velocity and proton density) presented on spaceweather.com are updated every 10 minutes. They are derived

  • Coming of big troubled sunspot region

    A big sunspot is emerging over the sun’s southeastern limb, and it is crackling with activity. NASA’s Solar Dynamics Observatory recorded a surge of extreme ultraviolet radiation from the sunspot’s magnetic canopy on March 21st:This appears to be the return of old

  • M-class solar flare eruption

    While we are still on impact of CME from X-flare events from March 9th, the sun got new M-class flare eruption.Effects from the 07 March CME was slowly subsiding during day one (11 March), but the arrival of a coronal hole high speed stream is expected to become

  • Geomagnetic storm (Kp=6) in progress

    During the past 24 hours, aurora displays have descended as far south as Wisconsin, Minnesota, and Michigan in the United States. Earth’s magnetic field is still reverberating from a CME strike on March 10th.Solar wind conditions favor more geomagnetic storming in

  • Geomagnetic storm in progress

    A coronal mass ejection (CME) hit Earth’s magnetic field on March 10th around 0630 UT. The impact, albeit weak, did provoke geomagnetic activity around the poles.Planetary K-indexNow: Kp= 5 storm24-hr max: Kp= 5 stormNewly-arriving coronagraph data from the Solar

  • X1.5-flare produced Earth-directed CME

    UPDATE:A coronal mass ejection (CME) hit Earth’s magnetic field on March 10th around 0630 UT. Solar wind conditions, post-impact, are favorable for geomagnetic activity.March 9th ended with a powerful solar flare. Earth-orbiting satellites detected an X1.5-class