NASA researchers are analyzing the light reflected by Earth–and other planets–to try to figure out which ones have conditions that might harbor life. The Earth shines with a blue light and stands out clearly among the other planets, "like a blue jay in a flock of seagulls." In, Daniel Pendick quotes researcher Carolyn Crow as saying, "The method we developed separates the planets out. It makes Earth look unique." Pendick quotes NASA astronomer Lucy McFadden as saying, "Eventually, as telescopes get bigger, there will be the light-gathering power to look at the colors of planets around other more

Why the Grays may be using it – Why do so many experiencers see a blue light, either coming from UFOs or even flooding their living rooms? It may be because different colors of light can control different parts of the brain.
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