After two years in the lab, our colleague Sudipta Saha left this week-end for a new postdoctoral position in the group of Pävi Törmä, in Aalto University, Finland. If he continues like this, next one will be on Svalbard islands… More seriously, Sudipta contributed efficiently to the projects he was involved in, in particular the tricky setup of a new Mueller experiment in the UV, and we will miss his competences, but also his constant good mood and his smile. Good luck to him !