The Ruđer Bošković Institute partnered once again with the Zagreb Observatory and the Croatian Astronomic Society to celebrate Galileo's night. On Thursday, 22 October 2009, our visitors will have the opportunity to take part in two interesting lectures on astronomy and astrophysics by the RBI scientist Tihomir Surić, PhD, and Mr. Marko Šimac. After these lectures the visitors will continue their astronomy adventure at the RBI basketball field where they will be able to observe the sky through the powerful telescopes and feel the thrill of discovery and wonder under dark Zagreb sky.