With a moon the size of Mars orbiting would that not counteract the tidelocking? Also since the moon, being within the habitable range as well with an atmoshphere, be habitable as well? The gravitational fluxuations may allow the core of the moon to remain liquid, or may be within the planets gravitational field, so the atmosphere would not be stripped like Mars is. There then would be the possibiliy for water, and life.

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Science may set limits to knowledge, but should not set limits to imagination.
Bertrand Russell (1872 - 1970)

Ooooo, I think I thought a thought. Ooo I did, I did, I did think a thought.