Hydrogen on Mars

Hydrogen on Mars

Fig. 8.26b . Regions of high hydrogen content at the north and south polar regions (dark blue and violet) are attributed to very high concentrations of buried water ice, at well over 50 percent by volume. The equatorial regions of Mars (red and yellow) are significantly drier than the polar regions, although they do exhibit low concentrations of hydrogen. The water ice region near the north pole is due to a permanent polar cap of water ice on the surface; elsewhere in the north polar region abundant buried subsurface ice is also found. (Courtesy of NASA, LPL, U. Arizona.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University