New images of the Sun show its outer atmosphere to be permeated with fine magnetic threads filled with million-degree plasma. The images were taken by NASA’s High-Resolution Coronal Imager (Hi-C), a telescope briefly carried into space by a suborbital rocket. Hi-C looks at a tiny fraction of the Sun, whereas the image shown here is a full-disk view from NASA's Solar Dynamics Observatory. Read the press release and/or the research article in the Astrophysical Journal. [NASA/SDO]