I love telescopes. These instruments are designed to observe the vast universe, and at their core resides a tiny superconducting detector, crafted with cutting-edge nanotechnology, that captures the light from distant astronomical objects. Galaxies are among my primary observational targets, with a focus on investigating the chemical composition of the gas that serves as the raw material for forming new stars and fueling black hole growth. This gas contains various molecules, and by exploring the abundance and distribution of each molecular species within different regions of a galaxy, I aim to uncover how galaxies have transformed over cosmic time. Through the telescope, diverse academic fields intersect across a wide range of scales. I find this interplay fascinating, and it motivates my daily research.