  In a recent paper, Edvardsson etal (2002) propose a new solution for the spin
evolution of the Earth and Mars. Their results differ significantly with
respect to previous studies, as they found a large contribution on the
precession of the planet axis from the tidal effects of Phobos and Deimos. In
fact, this probably results from the omission by the authors of the torques
exerted on the satellites orbits by the planet's equatorial bulge, as otherwise
the average torque exerted by the satellites on the planet is null.
