That bright blob at the lower right of the image is caused by a dust particle drifting in front of the LASCO camera for the duration of the 21-second exposure and reflecting sunlight onto the CCD. Exposures like these typically happen a few times per year. Were one to contact the SOHO mission team at ESA or NASA directly, they would get confirmation of the same. It’s a well-documented phenomena. They should know, they designed the equipment in the first place and are more than willing to discuss its capabilities.
Sometimes multiple particles cause streaks such as in the photo below taken only a few days ago at the time of this writing. Were a group of bloggers trying to line their pockets while disarming the gullible portions of the US public, they might use the photo below to attempt to establish credibility for their fabrications by saying "The Event" had begun, and the sun is being attacked by the klingon ship seen in the upper right. Anyone with half a brain would know they had dust in their eyes and their hands in other peoples' pockets. AK! How could that ever happen? o.0
Continue reading at this link provided by the SOHO team from 2005 which explains how the highway was paved in our solar system as in the image below.
