Laurie A. Leshin, Dean of the School of Science, holds a scale model of the Mars Rover Curiosity, 3D printed for her by an RPI grad student at her office on the RPI campus Tuesday Jan. 8, 2012, in Troy, N.Y.  The NASA spacecraft  is currently exploring the surface of Mars.  John Carl D'Annibale  Times Union Photo John Carl D'Annibale  00020669A