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Published 1967 | Reprint
Book Section - Chapter Open

Present Knowledge about the Thermal History of the Moon


The discussion of the thermal regime in the moon may be approached in two ways. One may assume initial conditions and integrate the heat equation forward in time to determine whether certain things might have happened in the course of lunar history. Alternatively, one may assume present conditions and integrate the equations backward to determine something about the initial conditions. Clearly, the approach you take will depend on whether you think you know the initial conditions or the present conditions better. It may also depend on the particular hypothesis you wish to prove. It should be generally agreed that thermal evolution calculations are very tentative estimates of a situation we may never fully understand, and that it is against the ground rules to use any results to prove something else.

Additional Information

© 1967 American Astronautical Society. This work was done in part under National Aeronautics and Space Administration contract NSR-24-005-047 to the 'Tycho' study group, Department of Electrical Engineering, University of Minnesota.

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August 19, 2023
January 13, 2024