Radio waves are simply another band -- or range of color -- of light. While stars shine most brightly at optical wavelengths, they also shine across the spectrum, including radio waves. Other objects, like star-forming clouds, emit little to any visible light, though they shine brightly in radio light.
Our cutting-edge telescopes are used to make new, radio discoveries every day, by penetrating through the dust and clouds of galaxies that obscures visible light.
