Wiggling Loops from 4 Flares – May 13 – 16, 2013

A composite image using an HMI magnetogram, AIA 171 (negative image) and AIA 131 from May 16, 2013

Wiggly Jiggly Loops by 4 flares from an evolving sunspot AR11748 showed us some exciting yet basically benign activity. A little image processing helps us really see certain aspects of the activity. Keep an eye out for wiggling loops set in motion by the eruptions (from the X flares – all 4 are in the [...]

AR11748 Releases Yet Another X Flare – X1.2

X1.2 Flare from AR11748 with the SDO/AIA 131 and 171. The flare peaked in X-ray at 1:48 UT on May 15, 2013 credit: NASA/SDO/jhelioviewer

The active region that could, has again given us an X flare! That makes 4! 12:15 UT – The NASA GSFC Space Weather Research Center has estimated that the CME may give a glancing blow to Epoxi (~5/18/2013 06:00 UT) and hit Spitzer (~5/17/2013 00:30 UT plus minus 7 hours). There is also a small chance [...]

Three’s a Charm! Another X Flare!

X3.2 Flare in 334 Angstrom light

The unnamed region on the east limb has produced a 3rd X-class flare! (Updated) 11:44 UT – The NASA GSFC Space Weather Research Center has estimated that the CME will merge with CMEs associated with the 2 X-flares (X1.7 and X2.8) and may give a glancing blow to STEREO B (~05/15/2013 18:00 UT) and Epoxi (~05/16/2013 00:00 UT) and hit [...]

A Decent Threefer Solar Eruption – Flare, CME and Particle Storm

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M6.5 solar flare, Earth-bound CME and a particle storm! AR11719 produced the largest flare of the year, an M6.5, peaking in GOES X-ray at 7:16 UT on April 11. First, we have a snapshot of the flare from the SDO/AIA 171 and 131 angstrom cameras. This shows us solar flare plasma from about 600,000 Kelvin [...]

Waiting for a St. Patrick’s Day Aurora

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Look at for Aurora tonight and tomorrow at high latitudes! Yesterday’s coronal mass ejection (CME) is expected to sweep past Earth in the last half of today (March 16, 2013) sometime around 18UT (+- 7-8 hours). Forecasts are from minor to strong geomagnetic storms so we will have to wait and see. Nothing for folks [...]

Van Allen Probes Discover a 3rd Radiation Belt around Earth

Two giant swaths of radiation, known as the Van Allen Belts, surrounding Earth were discovered in 1958. In 2012, observations from the Van Allen Probes showed that a third belt can sometimes appear. The radiation is shown here in yellow, with green representing the spaces between the belts. Credit: NASA/Van Allen Probes/Goddard Space Flight Center

Learn about this new result in a video by NASA Goddard Heliophysics Division. NASA presented these results at a press conference today. Tomorrow I will be on a Google Hangout with several of my colleagues at NASA Goddard. http://bit.ly/YzL5Mz Ask questions using #VanAllen Read more about this result at nasa.gov.

A Spot with Potential

AR11678 observed by SDO/HMI

A sunspot region with potential, AR11678! Yes pun intended. This solar active region (AR for short) has emerged suddenly from under the solar photosphere (the visible “surface”) packed with magnetic potential energy and the potential for some significant flaring. It has grown to over 6 Earth diameters across but its full extent is hard to [...]

Two CMEs Including One Earth Directed

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  Two solar filaments lifted off the sun in beautiful eruptions on January 23, 2013. Both eruptions produced coronal mass ejections or CMEs observed with the SOHO LASCO C2 coronagraph at 3:12 UT and 14:12 UT respectively.   The first eruption off the southeast solar disk produced a CME headed away from Earth towards the [...]

Two Non-Earthbound CMEs May Impact Mars and Several Spacecraft

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Two CMEs (Coronal Mass Ejections) occurred in the early hours of November 8, 2012 (UT), the later one a more significant, O-type CME. The 2 CMEs are denoted with red arrows in this snapshot from the NASA Space Weather Research Center (SWRC) CME propagation computer model. The first C-type CME was detected by SOHO LASCO C2, SOHO [...]

The Sun Today for October 10, 2012

Two New Active Regions for 10/10/12

  Two new active regions could bring solar activity, one numbered (AR11589) and one not yet on the solar disk. Based on recent activity M class flares are possible from both. The region just over the limb produced an M1 flare at 5:04 UT. Geomagnetic activity continued last night with many aurora reports. Pilot Matt [...]

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