This image taken on Oct. 19, 2013, shows a filament on the sun – a giant ribbon of relatively cool solar material threading through the sun's atmosphere, the corona. The individual threads that make up the filament are clearly discernible in this photo. . This image was captured by the Solar Optical Telescope onboard JAXA/NASA’s Hinode solar observatory. Credits: JAXA/NASA/Hinode . . Learn more about the sun on #DarkSideOfTheSun this Saturday at 9p, part of sciencechannel weekend. . . #astronomy #science #sun #spaceimages #solar #solarflare #universe #NASA