Remember Comet "Hale-Bopp" blazing through our night sky ten years ago, before it headed out into the far reaches of the cold, Neptunian space? We all expected it would've frozen over by now.
This image of Hale-Bopp was made last October when the comet was nearly 2.4 billion miles from the sun. Looks pretty startling to me! Researchers have determined that the nucleus is still releasing carbon monoxide gas into a coma more than 100,000 miles wide! Not bad for an ice cube.