Astronomy Cast

Episode 16: Across the Electromagnetic Spectrum


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We see the Universe in visible light with our photon detecting eyes. We can feel infrared heat with our photon detecting hands, and we get sunburns with our ultraviolet photon detecting skin (ouch). But there's a whole spectrum of photons out there, from radio waves to gamma rays that astronomers use to understand the Universe. It's time to see the whole picture.
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Astronomy CastBy Fraser Cain and Dr. Pamela Gay