First, does anyone know how long Mars Global Surveyor will operate for?

Second, why so few color images from Mars Global Surveyor? Will more color images be made?

Third, were any of the imaging instruments on any of the platforms actually calibrated against geological features on Earth?

Fourth, is any search on for the youngest crater on Mars? The older crater seem to suffer degradation which limits their usefullness as tools to sutdy the underlying "geological" (marseological?) processes.

Fifth, is any of the data from all of the platforms available in easy to use consolidated datasets?

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