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Message: <blockquote data-quote="lkdood" data-source="post: 10243739" data-attributes="member: 92282">Our Solar System ++ add rep if you like the post <img src="/styles/default/xenforo/smilies/default/D.gif"  class="smilie" loading="lazy" alt=":D" title="Big grin    :D" data-shortname=":D" /> <img src="http://cdn.theatlantic.com/static/infocus/solar0511/s_s01_40960171.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /> NASA's Solar Dynamics Observatory (SDO) satellite captures an image of the Earth's moon crossing in front of the Sun. <img src="http://cdn.theatlantic.com/static/infocus/solar0511/s_s02_00000001.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /> When a rather large-sized (M 3.6 class) flare  occurred near the edge of the Sun, it blew out a gorgeous, waving mass  of erupting plasma that swirled and twisted over a 90-minute period on  February 24, 2011. This event was captured in extreme ultraviolet light  by NASA's Solar Dynamics Observatory spacecraft . <img src="http://cdn.theatlantic.com/static/infocus/solar0511/s_s03_5a331230.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /> A closeup of the solar surface. Part of the largest  sunspot in Active Region 10030 recorded on July 15, 2002, with the  Swedish 1-m Solar Telescope on La Palma. The width of the cells near the  top of the image are roughly 1,000 km. The central part of the sunspot  ("the umbra") looks dark because the strong magnetic fields there stop  upwelling hot gas from the solar interior. The thread-like structures  surrounding the umbra make up the penumbra. Dark cores are clearly  visible in some of the bright penumbral filaments that stick out into  the umbra. <img src="http://cdn.theatlantic.com/static/infocus/solar0511/s_s04_00000002.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /> NASA's SOHO satellite watched as a fairly bright  comet dove towards the Sun in a white streak and was not seen again  after its close encounter on May 10-11, 2011. In this coronagraph the  Sun (represented by a white circle) is blocked by the red occulting disk  so that the faint structures in the Sun's corona can be discerned.  Interestingly, a coronal mass ejection blasted out to the right just as  the comet is approaching the Sun. Scientists, however, have yet to find a  convincing physical connection between sun-grazing comets and coronal  mass ejections. In fact, analysis of this CME using images from the  Solar Dynamics Observatory shows that the CME erupted before the comet  came close enough to the solar surface to interact with strong magnetic  fields. <img src="http://cdn.theatlantic.com/static/infocus/solar0511/s_s05_00000003.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /> Massive magnetic loops dance across the surface of the Sun. </blockquote>

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