m..m..m..m..m..m..m..my coronal.
WEAK IMPACT: A coronal mass ejection hit Earth's magnetic field around 0852 UT on July 11th, but the impact did not provoke strong geomagnetic activity. Nevertheless, high-latitude sky watchers should remain alert for auroras as a fast stream of solar wind blows around our planet.
And in other news...
DARK FIREWORKS ON THE SUN: NASA has just released new movies of an inky-dark solar explosion that continues to puzzle experts more than a month after it happened.
Earth-orbiting satellites detected a flash of X-rays coming from the western edge of the solar disk. Registering only "M" (for medium) on the Richter scale of solar flares, the blast at first appeared to be a run-of-the-mill eruption--that is, until researchers looked at the movies.
"We'd never seen anything like it," says Alex Young, a solar physicist at the Goddard Space Flight Center. "Half of the sun appeared to be blowing itself to bits."
NASA has just released new high-resolution videos of the event recorded by the Solar Dynamics Observatory (SDO).
See the footage from Science@NASA.
http://science.nasa.gov/science-news/science-at-nasa/2011/11jul_darkfireworks/http://science.nasa.gov/science-news/science-at-nasa/2011/11jul_darkfireworks/