US (3/8/12)—Earth could see some technical difficulties today as large solar flares—one of which was the second largest since early 2007—as well as two “significant coronal mass ejections” (CMEs) lashed out from the sun this past Tuesday, March 6th around 7pm ET, say NASA officials (see photo attached above). What’s more, numerous reports indicate that particles from these cosmic will be bombarding Earth throughout much of the day.
The following is an official NASA report composed by Karen C. Fox of NASA’s Goddard Space Flight Center in Greenbelt, MD on March 7th, 2012, regarding these occurrences.
“The sun erupted with one of the largest solar flares of this solar cycle on March 6, 2012 at 7PM ET. This flare was categorized as an X5.4, making it the second largest flare -- after an X6.9 on August 9, 2011 -- since the sun’s activity segued into a period of relatively low activity called solar minimum in early 2007. The current increase in the number of X-class flares is part of the sun’s normal 11-year solar cycle, during which activity on the sun ramps up to solar maximum, which is expected to peak in late 2013.
“About an hour later, at 8:14 PM ET, March 6, the same region let loose an X1.3 class flare. An X1 is 5 times smaller than an X5 flare.
“These X-class flares erupted from an active region named AR 1429 that rotated into view on March 2. Prior to this, the region had already produced numerous M-class and one X-class flare. The region continues to rotate across the front of the sun, so the March 6 flare was more Earthward facing than the previous ones. It triggered a temporary radio blackout on the sunlit side of Earth that interfered with radio navigation and short wave radio.
“In association with these flares, the sun also expelled two significant coronal mass ejections (CMEs), which are travelling faster than 600 miles a second and may arrive at Earth in the next few days. In the meantime, the CME associated with the X-class flare from March 4 has dumped solar particles and magnetic fields into Earth’s atmosphere and distorted Earth's magnetic fields, causing a moderate geomagnetic storm, rated a G2 on a scale from G1 to G5. Such storms happen when the magnetic fields around Earth rapidly change strength and shape. A moderate storm usually causes aurora and may interfere with high frequency radio transmission near the poles. This storm is already dwindling, but the Earth may experience another enhancement if the most recent CMEs are directed toward and impact Earth.
“In addition, last night’s flares have sent solar particles into Earth’s atmosphere, producing a moderate solar energetic particle event, also called a solar radiation storm. These particles have been detected by NASA’s SOHO and STEREO spacecraft, and NOAA’s GOES spacecraft. At the time of writing, this storm is rated an S3 on a scale that goes up to S5. Such storms can interfere with high frequency radio communication.
“Besides the August 2011 X-class flare, the last time the sun sent out flares of this magnitude was in 2006. There was an X6.5 on December 6, 2006 and an X9.0 on December 5, 2006. Like the most recent events, those two flares erupted from the same region on the sun, which is a common occurrence.”
While Fox’s report states that the geomagnetic disturbance or storm may rate at a relatively low G2 on the G1 to G5 scale, others have since placed the storm’s intensity somewhat higher at G3. With this rating, scientists are stating that everything from GPS systems and airplane flights, to electric power grids and satellite systems could see serious interference.
On the flip side, northern portions of the US will get a chance to check out the aurora borealis, which as mentioned above, become intensified by in color and size during these solar storms.
Though some scientists say particles from the solar flare/storm will be hitting our planet at a whopping 4 million miles-per-hour, technology will be taking the brunt of this cosmic event. Can our tech handle it? Only time will tell.
Some information and main photo/still provided by NASA
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