Searching for water in the atmosphere of the hot Saturn WASP-49b (contributed talk)

At the forefront of comparative exoplanetology, the atmospheric characterization of transiting exoplanets is revealing the intimate nature of these 'new worlds'. In this exciting context, we present here some preliminary results of our VLT program that consisted in monitoring three transits of the new 'hot Saturn' WASP-49b (Lendl et al. 2012) with the FORS instrument in Multi-Object Spectroscopic mode (MXU).