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The Origins and Geological Histories of Deimos and Phobos: Hypotheses and Open Questions

Head, James W.; Ramsley, Kenneth R.

Quantitative measurements and photographic imaging of the moons of Mars set limits on several key geological conclusions-such as the orbits of the moons. Other examples include their estimated bulk densities where Phobos has a density of ∼1.876 g/cm³ and Deimos has a lower and less certain density of ∼1.48 g/cm³. Imaging data…