Definition
Radio astronomy studies celestial objects by detecting radio waves they emit. π‘ It's like having ears to the universe, listening to signals invisible to the naked eye. It differs from optical astronomy, which uses visible light. Itβs similar to using night-vision goggles but for cosmic signals. Radio astronomy helps us study quasars, pulsars, and the cosmic microwave background radiation. π It is like hearing the faint whispers of the universe.