Rafael Bachiller is the director of the Spanish Observatorio AstronAƒA3mico Nacional (OAN). He received his doctorate in physics at the University Joseph Fourier (Grenoble, France). His research interests include the molecular content of planetary nebulae and the processes of star formation with special emphasis in the bipolar molecular outflows and their chemistry.

JosA(c) Cernicharo is a research professor at the Spanish Consejo Superior of Investigaciones CientAƒ-ficas. He received his doctorate in physics at the University of Paris IX. He is project scientist of the Herschel Space Observatory. His research interests cover most aspects of molecular astrophysics (identification of interstellar molecular species, physics and chemistry of the interstellar and circumstellar media, study of water vapour in space, etc).

Both are world-wide recognized specialists in millimeter/submillimeter astronomy and have been involved in ALMA from the genesis of the project to the more recent participation in the advisory and governing bodies (namely in the Scientific Advisory Committees and the ALMA Boards).