What is a radio telescope? How can we “see” with radio waves? Why are radio telescopes so large? Join Chris and Jonathan as they explore the nuts and bolts of radio telescopes.Learn more about advertising on the HowStuffWorks podcasts at www.howstuffworks.com/advertisers.htmAnd to learn about your ad choices when listening to podcasts, visit https://www.howstuffworks.com/privacy.htm#ad-choices