In november 2018 ESA announced that the Oxia Planum region is favoured for the ExoMars surface mission.

Candidate landing sites

The figure above from this answer about the 21 potential landing sites for the Mars 2020 mission shows that Oxia Planum was far below in the rank order.

Question: Why is there such a big difference in evaluating between NASA and ESA/Roscosmos ?

  • $\begingroup$ because the missions have different goals and requirments $\endgroup$
    – user20636
    Commented Dec 9, 2018 at 12:18
  • $\begingroup$ @JCRM If you could support your assertion with evidence, you would have a good answer ! $\endgroup$
    – Cornelis
    Commented Dec 9, 2018 at 12:39


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