A radio astronomer is a scientist who specializes in the study of radio waves emitted by celestial objects in space. There are several different terms that can be used to describe this profession, including astrophysicist, radio telescope operator, radio interferometer engineer, and radio astronomy researcher. Other related terms include microwave astronomer, infrared astronomer, and X-ray astronomer, which refer to scientists who study other wavelengths of light and radiation. Regardless of the specific title or area of focus, radio astronomers play a critical role in our understanding of the universe and its many mysteries.