A study in contrasts: ice and snow in the foreground, the lava lake of Mount Erebus below. Erebus is one of just a handful of volcanoes to boast a permanent lava lake. At the moment this picture was ... more 
A study in contrasts: ice and snow in the foreground, the lava lake of Mount Erebus below. Erebus is one of just a handful of volcanoes to boast a permanent lava lake. At the moment this picture was taken, the volcano was quiet, but it frequently erupts, hurling lava bombs high in the air. © Carsten Peter/National Geographic Click here to see more National Geographic photos. less 
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Mon, Jun 18, 2012 7:00 PM EDT