New Perspectives on Ancient Mars

@article{Solomon2005NewPO,
  title={New Perspectives on Ancient Mars},
  author={Sean C. Solomon and Oded Aharonson and Jonathan M. Aurnou and William Bruce Banerdt and Michael H. Carr and Andrew J. Dombard and Herbert V. Frey and Matthew P. Golombek and Steven A. Hauck, and James W. Head and Bruce M. Jakosky and Catherine L. Johnson and Patrick J. McGovern and Gregory A. Neumann and Roger J. Phillips and David E. Smith and Maria T. Zuber},
  journal={Science},
  year={2005},
  volume={307},
  pages={1214 - 1220}
}
Mars was most active during its first billion years. The core, mantle, and crust formed within ∼50 million years of solar system formation. A magnetic dynamo in a convecting fluid core magnetized the crust, and the global field shielded a more massive early atmosphere against solar wind stripping. The Tharsis province became a focus for volcanism, deformation, and outgassing of water and carbon dioxide in quantities possibly sufficient to induce episodes of climate warming. Surficial and near… 
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