Mars Express» team confirmed the water find in March 2004, saying the south polar cap is made up of 85 percent carbon dioxide ice and 15 percent at its center. (space.com)
The atmosphere is 96.5 percent carbon dioxide, which blocks scientists» view of the surface in almost all wavelengths of light. (sciencenews.org)
At the other end of the digester, Bryant captures biogas composed of about 60 percent methane and 40 percent carbon dioxide. (discovermagazine.com)