She specializes in modeling the deformation of the Earth's interior in response to the planet's rotation and the gravitational forces exerted upon it by the Sun and Moon.

She has used similar techniques to study Mercury, Venus, Mars and the icy satellites of the outer planets.

[1] She primarily works at the Royal Observatory of Belgium, but also serves as an Extraordinary Professor at the Université Catholique de Louvain.

[citation needed] Initially, Dehant's research focused on better understanding the rotation of the Earth in space (precession and nutation).

[7] She is a Fellow of the American Geophysical Union[8] and a foreign member of the French Academy of Sciences.