A July 2012 CME from SDO

The sun's greatest hits as captured by the Solar Dynamic Observatory from February 2012 to February 2013. Music: Mistake (Davide Rossi Re-Work - Instrumental) courtesy of Moby Gratis.For complete transcript, click here. Blended 131 angstrom and 171 angstrom images of July 19, 2012 flare and CME. Blended images in 304 and 171 angstrom wavelength light of August 31, 2012 prominence eruption and CME. December 31, 2012 prominence in 304 angstrom light. On Feb. 11, 2010, NASA launched an unprecedented solar observatory into space. The Solar Dynamics Observatory (SDO) flew up on an Atlas V rocket, carrying instruments that scientists hoped would revolutionize observations of the sun. If all went according to plan, SDO would provide incredibly high-resolution data of the entire solar disk almost as quickly as once a second. When the science team released its first images in April of 2010, SDO's data exceeded everyone's hopes and expectations, providing stunningly detailed views of the sun. In the three years since then, SDO's images have continued to show breathtaking pictures and movies of eruptive events on the sun. Such imagery is more than just pretty, they are the very data that scientists study. By highlighting different wavelengths of light, scientists can track how material on the sun moves. Such movement, in turn, holds clues as to what causes these giant explosions, which, when Earth-directed, can disrupt technology in space. SDO is the first mission in a NASA's Living With a Star program, the goal of which is to develop the scientific understanding necessary to address those aspects of the sun-Earth system that directly affect our lives and society. NASA's Goddard Space Flight Center in Greenbelt, Md. built, operates, and manages the SDO spacecraft for NASA's Science Mission Directorate in Washington, D.C.SDO: Year One here.SDO: Year 2 here.Information about the individual clips used in this video is here.Watch this video on YouTube. For More InformationSee [http://www.nasa.gov/mission_pages/sdo/news/sdo-year3.html](http://www.nasa.gov/mission_pages/sdo/news/sdo-year3.html) Related pages

Solar scientists have long known that at the heart of the great explosions of solar material that shoot off the sun — known as coronal mass ejections or CMEs — lies a twisted kink of magnetic fields known as a flux rope. But no one has known when or where they form. Now, for the first time, NASA's Solar Dynamics Observatory as captured a flux rope in the very act of formation.For complete transcript, click here. SDO AIA 131 angstrom standard coloration view of early flux ropes. SDO AIA 131 angstrom standard coloration view of flux ropes during CME. SDO AIA 131 and 171 subtraction blended image of early flux ropes. SDO AIA 131 hue-shifted image of flux ropes during CME. SDO AIA 131 and 171 difference blended image of flux ropes during CME. SDO AIA 131 and 171 difference blended image of early flux ropes. The image on the left shows a series of magnetic loops on the sun, as captured by NASA's Solar Dynamics Observatory on July 18, 2012. The image on the right has been processed to highlight the edges of each loop and make the structure more clear. A series of loops such as this is known as a flux rope, and these lie at the heart of eruptions on the sun known as coronal mass ejections (CMEs.) This is the first time scientists were able to discern the timing of a flux rope's formation. Blended 131 and 171 angstrom light view of flux rope formation and eruption. 131 only view of flux rope formation and eruption. High frequency 131 view of flux rope formation. On July 18, 2012, a fairly small explosion of light burst off the lower right limb of the sun. Such flares often come with an associated eruption of solar material, known as a coronal mass ejection or CME — but this one did not. Something interesting did happen, however. Magnetic field lines in this area of the sun's atmosphere, the corona, began to twist and kink, generating the hottest solar material — a charged gas called plasma — to trace out the newly-formed slinky shape. The plasma glowed brightly in extreme ultraviolet images from the Atmospheric Imaging Assembly (AIA) aboard NASA's Solar Dynamics Observatory (SDO) and scientists were able to watch for the first time the very formation of something they had long theorized was at the heart of many eruptive events on the sun: a flux rope. Eight hours later, on July 19, the same region flared again. This time the flux rope's connection to the sun was severed, and the magnetic fields escaped into space, dragging billions of tons of solar material along for the ride — a classic CME. More than just gorgeous to see, such direct observation offers one case study on how this crucial kernel at the heart of a CME forms. Such flux ropes have been seen in images of CMEs as they fly away from the sun, but it's never been known — indeed, has been strongly debated — whether the flux rope formed before or in conjunction with a CME's launch. This case shows a clear-cut example of the flux rope forming ahead of time.Watch this video on YouTube. For More InformationSee [http://www.nasa.gov/mission_pages/sdo/news/flux-ropes.html](http://www.nasa.gov/mission_pages/sdo/news/flux-ropes.html) Related pages