Le couple lune/terre est-il un couple atypique dans l’ensemble des planètes habitées ?
A dynamical study on the habitability of terrestrial exoplanets I: Tidally evolved planet-satellite pairs
"Elser et al. (2011) conclude that the probability of a terrestrial planet ending up with a heavy satellite ranges from 2% to 25% with an average of 13%. Combining these results suggests that the probability of ending up with a system such as our own is on average only 2%."