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The largest impact basin on Mercury and one of largest in Solar System. Discovered by Mariner 10, which only imaged half of it. First image of Mercury sent by Messenger was centered on this basin. As opposed to lunar basins, which are filled with dark material, Caloris is filled with light plains, which has not been explained yet. MESSENGER found titanium oxide in a region northwest of here.
Caloris Basin Web Pages[]
Caloris Basin In the News[]
Looking Ahead to Orbital Insertion (Feb 2011)[]
- See Caloris Basin