These images from NASA Spitzer Space Telescope of C/2012 S1 Comet ISON were taken on June 13, when ISON was 310 million miles about 500 million kilometers from the sun.
These images from NASA Spitzer Space Telescope of C/2012 S1 Comet ISON were taken on June 13, when ISON was 310 million miles about 500 million kilometers from the sun.