Notice that the atmosphere only lets Radio, Optical and some Infrared light in. The rest is screened For most human history astronomy meant optical astronomy. Radio was first. Then infrared and X-rays etc. Now the sky is being mapped in Gamma-rays.
Objects look very different at different wavelength.
First of four images of the Sun, this one made using visible light Second of four images of the Sun, this one made using ultraviolet light. Third of four images of the Sun, this one made using X rays. Fourth of four images of the Sun, this one made using radio waves. By studying the similarities and differences among these views of the same object, important clues to its structure and composition can be found. Car lights a long way away appear faint.