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• Tour of the
  Electromagnetic
  Spectrum

Tour of the Electromagnetic Spectrum

Welcome to the Tour of the Electromagnetic Spectrum. This unique NASA resource on the web, in print, and with companion videos introduces electromagnetic waves, their behaviors, and how scientists visualize these data. Each region of the spectrum is described and illustrated with engaging examples of NASA science. Come and explore the amazing world beyond the visible!

• Introduction to The Electromagnetic Spectrum

   

• Anatomy of an Electromagnetic Wave

   

• Wave Behaviors

   
   

• Visualization: From Energy to Image

   

• Radio Waves

   
   

• Microwaves

   
   

• Infrared Waves

   
   

• Reflected Near-Infrared Waves

   

• Visible Light

   
   

• Ultraviolet Waves

   
   

• X-Rays

   
   

• Gamma Rays

   
   

• The Earth's Radiation Budget