You are here

Electromagnetic Spectrum

The full range of electromagnetic radiation in order of wavelength from longest to shortest, or frequency from lowest to highest (radio waves, infrared, visible light, ultraviolet, X-rays, and gamma rays). In terms of visible light, a light spectrum runs from red to blue. Astronomers scan as much of the electromagnetic spectrum as possible to learn about the nature of the universe and how it came to be.


Radio Programs

Infrared Seeing beyond the range of the human eye May 11, 2022

Universal Scale Waves rippling through the cosmos May 10, 2022

Life in the Red Living under small, red suns January 12, 2022

Protected Space Blocking out Earthly interference October 6, 2021

Multiple Messengers Different messages from the universe May 17, 2021

Second Dog A different view of a hot star January 12, 2021

Moon and Companions A star’s unseeable brightness July 12, 2019

Moon and Aldebaran The bull’s eye shines into space September 29, 2018

Moon and Spica Heating up a beautiful star August 15, 2018