Question

What is Radio Astronomy?

Answer 1

Radio Astronomy is the study of universe through analysis of radio emission.

Explanation:

Radio telescopes do this job of collecting data on the characteristics like brightness, color and motion of electromagnetic spectrum that contains all radiation from distant stars and far-distant star clusters.

In contrast, the visible spectrum is a very little part of the spectrum and so not that helpful for rigorous analysis.

Reference: What is Radio Astronomy?
www.skyandtelescope.com/astronomy-resources/radio-astronomy/.