Mars volcanic deposit tells of warm and wet environment
Sunday, October 31, 2010 - 15:10
in Earth & Climate
(PhysOrg.com) -- Roughly 3.5 billion years ago, the first epoch on Mars ended. The climate on the red planet then shifted dramatically from a relatively warm, wet period to one that was arid and cold. Yet there was at least one outpost that scientists think bucked the trend.