Get your 3D glasses out if you can. Launched on 26 October 2006 the twin STEREO solar observers were just a few months into their flights when for a time they were situated at the proper distance from each other to allow us to see the stereoscopic view of the Sun.
Part of the NASA caption:
“This footage is from March and April 2007, when the small separation of the two spacecraft allowed a stereoscopic view of the sun similar to how human eyes perceive the world around us. These images were captured by STEREO in several wavelengths of extreme ultraviolet light which show different layers of the sun’s atmosphere. The number in the lower right of the video shows the wavelength of light measured in Angstroms.”
NASA – STEREO Website