2D view of the Sun, observed by STEREO

2D view of the Sun, observed by STEREO
Originally uploaded by chadisalem

I thought this was eye-catching, being blue and all. My eyes are blue. The window to the "sol" is in the eyes. The blue color, however, is obviously a false color- it simply represents the Sun seen at a given temperature or wavelength, in this case 1 million degrees C (or 171 Å). Each temperature allows scientists to focus on different features of the sun (and different color photographs!).

And no, you can't listen to this photograph with your living room's sound system (as far as I can tell). Images are taken by the NASA's twin STEREO (Solar TErrestrial RElations Observatory) satellites, launched in 2006.