As Comet Lulin zooms towards Earth, NASA is getting unprecedented simultaneous ultraviolet and X-ray images of a comet. Check out the way an optical illusion makes the tail appear to be in front. [NASA/AP]
As Comet Lulin zooms towards Earth, NASA is getting unprecedented simultaneous ultraviolet and X-ray images of a comet. Check out the way an optical illusion makes the tail appear to be in front. [NASA/AP]
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