Includes bibliographical references.

Spatial central configurations for the +4 body problem ; Analytic estimation of weak stability boundaries and low energy transfers ; The complex geometry of the spherical pendulum ; Action minimizing periodic orbits in the Newtonian ody problem ; On symmetric periodic orbits of the elliptic Sitnikov problem via the analytic continuation method ; Constructing a low energy transfer between Jovian moons ; The generalized Sitnikov problem ; Reflexions on the future of celestial mechanics ; Generic drift on Cantor sets of annuli ; Action spectrum and collisions in the planar threebody problem ; A variational shadowing method ; Symbolic dynamics for transition tori ; Dynamical properties of the figure eight solution of the threebody problem ; Diffusion in comet motion ; The Hill's region of the fourbody problem ; Some of the problems that Saari didn't solve Alain Albouy and Jaume Llibre ; Edward Belbruno ; Frits Beukers and Richard Cushman ; Alain Chenciner ; Montserrat Corbera and Jaume Llibre ; Wang Sang Koon Jerrold E Marsden Shane D Ross and Martin W Lo ; Ernesto A Lacomba Jaume Llibre and Ernesto PerezChavela ; C Marchal ; Richard Moeckel ; Richard Montgomery ; Paul H Rabinowitz and Edward W Stredulinsky ; Clark Robinson ; Carles Simo ; YiSui Sun JiLin Zhou JiaQing Zheng and Mauri Valtonen ; Qiudong Wang ; Zhihong Xia