Paper: Habitability of Tidelocked Planets

People in the planetary science groups at UC Berkeley and U. Hawaii produced this paper, which models possible instabilities in the climates of gravitationally tidelocked planets. As you might expect, in terms of habitability, it's worse to be tidelocked than not. Although Mars isn't tidelocked they use it as an example of the kind of run-away weathering that tidelocking could produce.

Here's an article of what would happen to our geography if the earth stopped rotating.




Iapetus is tidally locked to Saturn, as the Moon is to Earth.