Minor geomagnetic storming (G1 on the Geomagnetic Storm Scale) is underway following the arrival at Earth of 1 or more Coronal Mass Ejections that erupted from the Sun late last week and into the weekend. Activity is not expected to strengthen much beyond current
A CME hit Earth’s magnetic field on Sept. 26th, sparking one of the strongest magnetic storms in years. At the peak of the Kp=8 disturbance, auroras were sighted around both poles and more than half a dozen US states. Magnetic reverberations continued for more than 48
A severe geomagnetic storm (Kp=7 to 8) that began yesterday when a CME hit Earth's magnetic field is subsiding.At the peak of the disturbance, auroras were sighted around both poles and in more than six US states including Michigan, New York, South Dakota, Maine, Ma
A coronal mass ejection (CME) hit Earth’s magnetic field on Sept 17th, sparking a moderate geomagnetic storm and auroras around the Arctic Circle. The view from Siberia was exquisite:The storm is subsiding now. Nevertheless, high-latitude sky watchers should remain
As predicted by analysts at the Goddard Space Weather Lab, a coronal mass ejection (CME) hit Earth's magnetic field at ~03:30 UT on Sept 17th. The impact sparked a moderate geomagnetic storm (in progress) and auroras around the Arctic Circle. High-latitude sky watch
As predicted by analysts at the Goddard Space Weather Lab, a coronal mass ejection (CME) hit Earth’s magnetic field at ~03:30 UT on Sept 17th. The impact was not strong. Nevertheless, the arrival of the CME could spark geomagnetic activity around the Arctic Circle.
New sunspot AR1295 is emerging over the sun’s northeastern limb and crackling with solar flares. The strongest so far, a C9.9-category blast, did something remarkable. Click on the arrow to watch an extreme ultraviolet movie from NASA’s Solar Dynamics
The first of several CMEs en route to Earth struck our planet’s magnetic field on Sept. 9th around 1130UT. The impact sparked a strong (Kp=7) geomagnetic storm, which is now subsiding. Last night Northern Lights were spotted in the United States as far south
UPDATE: The Geomagnetic Storm has subsided over the past few hours. However, the solar wind remains energized and occasional pulses of activity are expected for another 24 hours. Region 1283, the responsible party back at the Sun, decayed today. The Geomagnetic Storm
A polar geomagnetic storm (Kp=5) is in progress following the impact of a CME around 1100 UT on Sept. 9th. This could be the first of several hits from a series of CMEs expected to reach Earth during the weekend. High-latitude sky watchers should be alert for auroras
