At 18:10 UTC Monday, a short duration M3.5 Solar Flare took place around Sunspot 1263. Because of its location, any explosions at this point may not be earth directed.Just when solar activity was slowing down, an M3.5 Solar Flare took place around Sunspot 1263
Behemoth sunspot 1263 has almost doubled in size this weekend. A 28-hour movie from NASA's Solar Dynamics Observatory shows the spot developing a tail that has added some 50,000 km of length to the active region.This development may increase the likelihood of a stro
A Moderate Solar Flare reaching M6.0 took place around Sunspot 1261 at 13:47 UTC Wednesday and appears to be long in duration. A brief R2 Radio Blackout resulted. A bright Coronal Mass Ejection (CME) is associated and can be seen in the image below. It is most likely
Double sunspot 1263 is a whopper. Its two dark cores are each wider than Earth, and the entire region stretches more than 65,000 km from end to end. The clarity of image is impressive. Note the granulation of the stellar surface surrounding the main dark cores.
Magnetic fields above sunspot 1261 erupted this morning at 0648 UT, producing an M1-class solar flare. The blast also hurled a bright coronal mass ejection toward Earth. This movie from the STEREO-Ahead spacecraft shows the cloud racing away from the sun at almost
On June 7, 2011, Earth-orbiting satellites detected a flash of X-rays coming from the western edge of the solar disk. Registering only “M” (for medium) on the Richter scale of solar flares, the blast at first appeared to be a run-of-the-mill eruption- that is, until
A fast-moving stream of solar wind is buffeting Earth’s magnetic field. The combined effect of this stream plus a CME expected to arrive on June 24th has prompted NOAA forecasters to declare a 30% to 35% chance of geomagnetic storms during the next 24 hours.
A fast-moving stream of solar wind is buffeting Earth’s magnetic field. The combined effect of this stream plus a CME expected to arrive soon has prompted NOAA forecasters to declare a 30% to 35% chance of geomagnetic storms on June 23-24. High-latitude sky watchers
Magnetic fields above sunspot complex 1236 erupted during the early hours of June 21st, producing a C7-class solar flare and a full-halo CME. The expanding cloud appears to be heading almost directly toward
The magnetic field of sunspot 1236 harbors energy for M-class solar flares. NOAA forecasters estimate a 25% chance of such an eruption during the next 24 hrs.
