Astronomers make observations in visible light, but also in other parts of the electromagnetic spectrum, such as radio and gamma waves. Scientists make observations in different wavelengths because -

Astronomers make observations in visible light, but also in other parts of the electromagnetic spectrum, such as radio and gamma waves. Scientists make observations in different wavelengths because -

other wavelengths can enter Earth's atmosphere undisturbed.

observations in different wavelengths provide different information about stars.

the information provided by visible light is not a reliable source of data.

visible light only provides information about the closest objects in our galaxy.