NASA Confirms Largest Solar Storm Since 2005 Just Unleashed 1/23/2012

NASA Confirms Largest Solar Storm Since 2005 Just Unleashed 1/23/2012 






January 23, 2012




NASA Earth Observatory has confirmed with imagery courtesy of Solar Dynamics Observatory, that the largest solar storm since 2005 has just been unleashed from the sun.  Reports are circulating the news wires and the internet on the possible repercussions of such an event. We highly recommend that you make sure your emergency preparations plans are in order. Scientists really have no idea what will happen to the Earth, but our job as parents, and concerned loved ones is to have our preparation plans in order. - EFG-BN


NASA Earth Observatory Says the Following:

Following one of the longest and weakest periods of activity in many cycles, the Sun is brimming with activity again. In late January 2012, our nearest star offered a preview of what may be to come in the solar maximum of 2012–13. The storm has the potential to disrupt some communications and satellite systems and to bring auroras to high-latitude skies.

The images above show a solar flare as observed by the Atmospheric Imaging Assembly (AIA) on NASA’s Solar Dynamics Observatory (SDO) at 03:27, 03:42, and 04:12 Universal Time (Greenwich Time) on January 23. Note the brightening of the solar surface as gas was superheated and magnetically supercharged. By the third (right) image, a stream of solar material is seen flowing off into space above the hot spot, likely solar protons and a coronal mass ejection. Click on the enlarged images and movies for a wider view.

The high-latitude solar flare was measured as M8.7 in intensity, just below the most intense “X class” of flares. The eruption sent a stream of fast-moving, highly energetic protons toward Earth, provoking the most intense solar energetic particle storm—an S3 on NOAA Space Weather Prediction Center’s scale—since 2005.

The flare was accompanied by a coronal mass ejection (CME), a cloud of solar plasma that was ejected from the solar atmosphere in the direction of Earth. The CME was observed by the STEREO and SOHO spacecraft with an initial speed of more than 2,000 kilometers (1,400 miles) per second. It was estimated to reach Earth sometime on January 24 and Mars on January 25. NOAA forecasters were predicting a G2 geomagnetic storm, though a G3 was possible.

Solar flares and CMEs are not a danger to humans on Earth's surface, as the planet's magnetic field (magnetosphere) and atmosphere deflect and absorb the solar energy and particles. The sun storms can pose some risks to astronauts, and they can upset the electronics and transmissions on science, military, and communications satellites. Closer to Earth's surface, solar activity can cause disruptions of radio signals (particularly HF), provide a small dose of radiation to passengers on high-latitude flights, and provoke auroras (northern and southern lights).

The storm is impressive by recent standards, but nowhere near the maximum intensities often generated at the height of the solar cycle. “I would expect that we will see more storms like this one or even bigger as we get closer to solar maximum,” said Michael Hesse, chief of heliophysics at NASA’s Goddard Space Flight Center.

NASA images courtesy Solar Dynamics Observatory. Caption by Mike Carlowicz.

Instrument:

SDO - AIA

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