Readers ask: Why Does The Spitzer Telescope Use Infrared Radiation?

Since they are much cooler than the Sun, brown dwarfs glow primarily in the infrared. The Spitzer Space Telescope will provide critical data on their abundance and character. Ultra-Luminous Infrared Galaxies: Many galaxies emit more radiation in the infrared than at all other wavelengths combined. Why do telescopes use infrared? …

When Did William Herschel Discover Infrared Waves?

Most encyclopedias and physics books credit the great British astronomer Sir William Herschel with the discovery of infrared radiation in 1800. Who discovered infrared waves and how? Around 1800, the German-born British-astronomer William Herschel discovered infrared radiation. He did so with a simple experiment in which he dispersed sunlight through …

Quick Answer: What Effects Do Clouds Have On Infrared Photons Coming From Earth?

Clouds absorb infrared photons very efficiently, and in essense contribute to the greenhouse effect. In fact the cloud effect is a huge contributor to the overall greenhouse effect on Earth. The infrared radiation energy absorbed by the greenhouse gases and clouds heats the atmosphere. What effects do clouds have on …

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