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To celebrate Sol1K, check out the awesome panoramas of Spirit's winter haven. If you have red-blue glasses, I highly recommend the red-blue anaglyph.
Red-blue-green: Why do some comet atmospheres glow green? The coma contains cyanogen (CN) and diatomic carbon (C2), which glow green when illuminated by sunlight (called "resonant fluorescence”) (from Science@NASA).
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