17827736 story NASA Confirms Discovery of Organism With Phosphorus-Free DNA 380 Posted by timothy on Thursday December 02, 2010 @02:53PM from the well-it's-not-that-shaggy dept. GNUALMAFUERTE writes "As we mentioned before, NASA's Department of Astrobiology had an important announcement to make today. It looks like Gizmodo was right. You can watch the presentation online right now. It looks like the bacteria in question uses arsenic as a phosphorus replacement in its DNA."