What is radio astronomy?
Radio astronomy studies planets, stars, galaxies, and other astronomical objects using radio waves they emit. Because radio waves are much longer than light waves, radio astronomy requires large antennas, such as those used by the DSN to communicate with spacecraft exploring the solar system. A public-outreach lithograph and a tutorial self-paced mini-course on radio astronomy, developed for teachers and students using the Goldstone Apple Valley Radio Telescope , is available for browsers capable of handling PDF files. An Introduction to Radio Astronomy is also available at the National Radio Astronomy Observatory . A radio astronomy course suitable for graduates and advanced undergraduates in astronomy, engineering and physics is also available at NRAO. Slides from a graduate level course on pulsars is available at Jodrell Bank.