I am a Lecturer in Astronomy/Columbia Science Fellow as a part of the team for Frontiers of Science, a required scientific survey course for all Columbia College first years. My research focuses on using radio interferometric observations of the 21 cm neutral atomic hydrogen emission line to understand the gaseous properties of galaxies in different large-scale environments. I have analyzed all varieties of radio interferometric data, from the deepest single-pointing HI survey to date, COSMOS HI Large Extragalactic Survey (CHILES), to observations of singular but interesting galaxies. I use these different data to derive the gaseous properties of galaxies, and then attempt to understand these properties by placing them in the context of the large-scale structure of the universe.