NASA Images Massive Solar Flare
An anonymous reader writes: NASA's Solar Dynamics Observatory, has sent back pictures of a massive, X-class solar flare. The X-class flares are the strongest, and this one received an X2.7 rating. It wasn't pointed at us, and there was no notable harm done, but there was a brief radio blackout (and a burst of static) over the Pacific Ocean and western North America.
This flare follows news of a presentation (PDF) from the Space Weather Workshop that there is evidence for a phenomenon known as a "superflare", which can be up to a thousand times stronger than the flares we routinely see. Such behavior is seen in other stars, and may be expected from the Sun once every 10,000 years, on average.
This flare follows news of a presentation (PDF) from the Space Weather Workshop that there is evidence for a phenomenon known as a "superflare", which can be up to a thousand times stronger than the flares we routinely see. Such behavior is seen in other stars, and may be expected from the Sun once every 10,000 years, on average.
O, swear not by the moon, the inconstant moon,
That monthly changes in her circled orb,
Lest that thy love prove likewise variable.
offtopic
Antisthenes: "Wisdom begins by examining the words/names." - excuse my English, i am (slightly...) better with my Greek!
So every 10,000 years, a superflare destroys human civilization?
Not lobbying for a piece of the global warming pie like sharks at a kill site.
From 2000 in Harvard Astronomy Journal
Abstract
Stellar flares with 102-107 times more energy than the largest solar flare have recently been detected from nine normal F and G main-sequence stars by Schaefer, King, and Deliyannis. These superflares have durations of hours to days and are visible from at least X-ray to optical frequencies. The absence of world-spanning aurorae in historical records and of anomalous extinctions in the geological record indicates that our Sun likely does not suffer superflares. In seeking to explain this new phenomenon, we are struck by its similarity to large stellar flares on RS Canum Venaticorum binary systems, which are caused by magnetic reconnection events associated with the tangling of magnetic fields between the two stars. The superflare stars are certainly not of this class, although we propose a similar flare mechanism. That is, superflares are caused by magnetic reconnection between fields of the primary star and a close-in Jovian planet. Thus, by invoking only known planetary properties and reconnection scenarios, we can explain the energies, durations, and spectra of superflares as well as explain why our Sun does not have such events.
hot
Whenever I read a NASA headline my thoughts are usually along the lines of, "NSA images massive solar flare. Wait, what? Oh NASA."
The absence of world-spanning aurorae in historical records and of anomalous extinctions in the geological record indicates that our Sun likely does not suffer superflares.
Now what do I do with the 30 years worth of survival food bars in my fallout shelter?
i am afraid to say their stuff would be rebuilt at highest priority.
also, a massive nuke would be required for the u.s. think of the tsar bomb. little norkie ones dont suffice.
So, have your child already had the number list from the time capsule of their school's 50 year anniversary?