Photo: Sky Show Tonight: Green "Two-Tailed" Comet Arrives



Comet Lulin is seen in the early morning sky on February 23, 2009. The blurred appearance of stars in the picture is the result of the photographer having to move the lens to track the comet during a long exposure.

Comet Lulin will make its closest approach to Earth on February 24.

Photograph by Johnny Home/Fayetteville Observer via AP


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