Explore the Electromagnetic Spectrum - NASA Space Place
Credit: NASAJPL-Caltech Explore the "Magic Windows" of the electromagnetic spectrum below! Radio Waves Credit: NASAJPL-Caltech Radio waves are very long and not very energetic. Radio waves can be from about the length of a football field up to 100 kilometers (60 miles) and more. Here we see a quasar (for "quasi-stellar object") through the Magic Radio Window. Quasars look a bit like stars . . .
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