New sunspot group bombards Earth with solar flares
July 07, 2012
A violent new sunspot is bombarding the Earth with particles from solar flares - including a blast that affected some radio transmissions across Europe.
Nasa's Solar Dynamics Observatory captured an M5.6-class solar flare erupting from the sun's surface starting on July 2, from a huge sunspot called AR1515 in the sun's southern hemisphere.
The blast of particles - a 'coronal mass ejection' - was not directed towards Earth, but the charged particles caused brief radio interference across Europe.
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NASA's Solar Dynamics Observatory saw an active region on the sun, labeled AR1515, sent out an M5.3 class solar flare that peaked on Independence Day July 4th, 2012
This image, captured by the Solar Dynamics Observatory, shows the M5.3 class solar flare that peaked on July 4, 2012
SUMI'ss instruments are designed to study magnetic fields of the sun's chromosphere -- a thin layer of solar atmosphere sandwiched between the visible surface, photosphere and its atmosphere, the corona
From a different spot, but on that same day, the sun unleashed a coronal mass ejection (CME) that began at 4:36 AM on Tuesday.
Models from the NASA's Space Weather Center at Goddard Space Flight Center in Greenbelt, Md, described the CME at traveling at nearly 700 miles per second, but do not show it heading toward Earth.
Sunspots are darker than the surrounding area because they are slightly cooler, which makes them less luminous.