Ultraviolet light is higher energy and a shorter wavelength than visible light, and points to energetic processes on stars, galaxies, and planets.
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Observing Ultraviolet Light
Catching Cosmic Rays - (2011) Fall 2011 - THE SHOCKER
Observing Ultraviolet Light
Why NASA Studies the Ultraviolet Sun - NASA
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Wavelengths - NASA Science
249 Uv Light Virus Stock Photos, High-Res Pictures, and Images
Quantum interference observed in real time: Extreme UV-light