I work on many topics, primarily extragalactic. My main goal is understanding how galaxies, including our own Milky Way, came to be as they are today. That requires putting together knowledge from many astronomy branches such as cosmology, interstellar medium, star formation, and black holes. I am a multi-wavelength experimentalist and enjoy using many instruments, such as ALMA, the VLA, IRAM, CARMA, SOFIA, Herschel, HST, and JWST. My main tools, however, are millimeter and sub-millimeter wavelengths and interferometers such as ALMA.