Saturn's largest moon Titan turns a ghostly green!
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5. Saturn's largest moon Titan turns a ghostly green!
"This composite image shows an infrared view of Saturn's moon Titan from NASA's Cassini spacecraft, acquired during the mission's ''T-114'' flyby on Nov. 13, 2015. A view at visible wavelengths would show only Titan's hazy atmosphere. The near-infrared wavelengths in this image allow Cassini's vision to penetrate the haze and reveal the moon's surface." Picture: NASA