-Infrared waves have a wavelength 1,000x longer than ultraviolet waves (10^-16 vs 10^-13).
-Infrared waves have longer wavelengths than visible light and can pass through dense regions of gas and dust in space with less scattering and absorption. Thus, infrared energy can also reveal objects in the universe that cannot be seen in visible light using optical telescopes.
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B.-longer
-Infrared waves have a wavelength 1,000x longer than ultraviolet waves (10^-16 vs 10^-13).
-Infrared waves have longer wavelengths than visible light and can pass through dense regions of gas and dust in space with less scattering and absorption. Thus, infrared energy can also reveal objects in the universe that cannot be seen in visible light using optical telescopes.