The Museo Galileo is one of the main international institutions working in the field of scientific museology, in the dissemination of scientific culture as well as in documentation and research in the history of science and technology. The museum precious collections consist of ancient scientific instruments that were collected by the Medici and Lorraine dynasties in the course of about four centuries. They include all Galileo's only extant artifacts. Its well-furnished library is specialized in the history of science and technology. The historical archives preserve resources of great importance for the history of science in general, and for Tuscany and Florence in particular. The museum website offers manifold resources for research in the history of science, including a rich collection of digitized books. The Museum publishes specialized monographs and two journals with international circulation, i.e. Nuncius and Galilæana. It partners with prestigious international institutions on innovative research projects and organizes conferences and temporary exhibitions on the history of science and the interactions of science and technology with the arts.