January 15, 2013 – THE SUN – Simulations of a coronal mass ejection (CME) show the impact arrival of such on January 17th. This coincides with Senior Meteorologist Kevin Martin’s window for an earthquake in North America. The Sun is acting up again, with large sunspots moving across the solar disk. The sunspots are powerful enough for x-class solar flares, the most powerful of them all.
|Image: The Weather Space Network.
While a 10% chance is now given for such a flare, one is already on the way. This should impact on January 17th and Read more…
It was in January 1994 that two Canadian telecommunications satellites blanked out during a major sunburst while in geosynchronous orbit and communications were disrupted nationwide.
While recovery occurred after only a few hours on the first satellite, it took some six months and more than $70 million to recover the second satellite.
Then in January 2005, some 26 United Airlines flights had to be diverted during a space weather storm to non-polar routes – to avoid the prospect of high frequency radio blackouts.
Added were landings and takeoffs, flight time and other factors that elevated fuel consumption and costs. Each route change ended up costing more than $100,000.
Then in February 2011, there was a sun eruption experts described as the largest solar flare in four years. It caused interference in radio communications and global positioning system signals for aircraft traveling long-distances.
While it was a modest outburst, experts say it signaled the beginning of an upcoming Read more…
MessageToEagle.com – Coronal cavities are voids in coronal emission often observed above high latitude filament channels.
Sometimes, these cavities have areas of bright X-ray emission in their centers.
Now, NASA scientists focus on this mysterious phenomenon because it seems to be strongly related to dangerous coronal mass ejections (CMEs).
And CMEs, scientists have to worry about.
Click on image to enlargeThe faint oval hovering above the upper left limb of the sun in this picture is known as a coronal cavity. NASA’s Solar and Read more…
BIG SUNSPOT: One of the largest sunspot groups in years rotated over the sun’s northeastern limb this weekend. With a least four dark cores larger than Earth, AR1476 sprawls more than 100,000 km from end to end, and makes an easy target for backyard solar telescopes. Amateur astronomer Alan Friedman sends this picture of the behemoth from his backyard in Buffalo, NY: “AR1476 is firecrackler,” says Friedman. Indeed, the active region is crackling with impulsive M-class solar flares. Based on the sunspot’s complex ‘beta-gamma’ magnetic field, NOAA forecasters estimate a 75% chance of Read more…
ANOTHER CME FROM SUNSPOT AR1429: Transiting the farside of the sun, never-say-die sunspot AR1429 erupted during the late Read more…