李广兴，云南大学副教授。德国慕尼黑大学博士后(2014-2018)、德国马普射电天文所博士(2010-2014)、中国科学技术大学天体物理硕士(2007-2010)、北京大学电子学学士(2003-2007)。研究领域：星际介质、恒星形成、天体物理中的气体动力学过程。The Milky Way disk, as a whole, is a self-regulated ecosystem. Star formation occurs in molecular clouds, whose boundary conditions are determined by the Galaxy they reside in. The stars formed in the clouds can change the dynamics of the surrounding gas. The Gaia satellite can measure the structure and kinematics of gas and stars in the Galactic disk. Based on the new view, I discuss the circulation of gas between different ISM phases, reveal the birth of disruption of giant, Galactic-Scale molecular filaments, and discuss constraints on the disruption of molecular clouds by stellar feedback. I also discuss how modern computational techniques can be applied to observational data to extract physical insights.