June 6, 2011: Dramatic ‘flare’ bursting out from the sun which could affect satellite communications and power supplies here on Earth.
The spectacular development unleashed a radiation firestorm on a level not seen for five years which is expected to cause a ‘moderate’ geomagnetic storm when it reaches Earth.
The eruption hurled a cload of hot plasma into space at about a million miles an hour.
Flights over polar regions face being rerouted. Read full article: dailymail
We witnessed an incredible display of solar activity,” reports amateur astronomer Stephen W. Ramsden. “A magnetically supercharged chunk of hot plasma was ejected from the limb of the sun right before our eyes. It just hung there over the stellar surface almost 25 Earth-diameters high. The event was breathtaking to watch and really got the attendees interested in our nearest star.”
June 7, 2011: The Sun unleashed an M-2 (medium-sized) solar flare with a substantial coronal mass ejection (CME) that is visually spectacular. The large cloud of particles mushroomed up and fell back down looking as if it covered an area of almost half the solar surface.
SDO observed the flare’s peak at 1:41 AM EST. SDO recorded these images in extreme ultraviolet light and they show a very large explosion of cool gas. It is somewhat unique because at many places in the eruption there seems to be even cooler material — at temperatures less than 80,000K.
When viewed in SOHO’s coronagraphs, the event shows bright plasma and high-energy particles roaring from the Sun. This Earth-directed CME is moving at 1400 km/s according to NASA models. Due to its angle, however, effects on Earth should be fairly small. Nevertheless, it may generate space weather effects here on Earth in a few days. Credit: NASA SDO