APOD: 2018 December 20 - Red Nebula, Green Comet, Blue Stars

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fake-jizo Explanation: This festively colored skyscape was captured in the early morning hours of December 17, following Comet Wirtanen's closest approach to planet Earth. The comet was just visible to the eye. Tags: ifttt, space via Pocket

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APOD: 2018 December 20 - Red Nebula, Green Comet, Blue Stars

Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our... Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2018 December 20 Explanation: This festively colored skyscape was captured in the early morning hours of December 17, following Comet Wirtanen's closest approach to planet Earth. The comet was just v